Home / 103,353,167.70-155,029,751.55-72,742,166.10

Finding the Fourth Proportional to 103,353,167.70, 155,029,751.55 and 72,742,166.10

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Solution

The fourth proportional to 103,353,167.70, 155,029,751.55 and 72,742,166.10 is: 109,113,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,353,167.70 : 155,029,751.55 = 72,742,166.10 : x
  2. Step 2: Convert to fraction form
    103,353,167.70/155,029,751.55 = 72,742,166.10/x
  3. Step 3: Cross multiply
    103,353,167.70x = 155,029,751.55 × 72,742,166.10
  4. Step 4: Simplify right side
    103,353,167.70x = 11,277,199,937,691,832
  5. Step 5: Solve for x
    x = 11,277,199,937,691,832/103,353,167.70
  6. Step 6: Final answer
    x = 109,113,249.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.