Home / 103,667.90-155,386.65-56,954.30

Finding the Fourth Proportional to 103,667.90, 155,386.65 and 56,954.30

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Solution

The fourth proportional to 103,667.90, 155,386.65 and 56,954.30 is: 85,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,667.90 : 155,386.65 = 56,954.30 : x
  2. Step 2: Convert to fraction form
    103,667.90/155,386.65 = 56,954.30/x
  3. Step 3: Cross multiply
    103,667.90x = 155,386.65 × 56,954.30
  4. Step 4: Simplify right side
    103,667.90x = 8,849,937,880.10
  5. Step 5: Solve for x
    x = 8,849,937,880.10/103,667.90
  6. Step 6: Final answer
    x = 85,368.16

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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.