Home / 113,571,014.70-170,356,522.05-72,756,345.90

Finding the Fourth Proportional to 113,571,014.70, 170,356,522.05 and 72,756,345.90

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Solution

The fourth proportional to 113,571,014.70, 170,356,522.05 and 72,756,345.90 is: 109,134,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,571,014.70 : 170,356,522.05 = 72,756,345.90 : x
  2. Step 2: Convert to fraction form
    113,571,014.70/170,356,522.05 = 72,756,345.90/x
  3. Step 3: Cross multiply
    113,571,014.70x = 170,356,522.05 × 72,756,345.90
  4. Step 4: Simplify right side
    113,571,014.70x = 12,394,518,044,590,778
  5. Step 5: Solve for x
    x = 12,394,518,044,590,778/113,571,014.70
  6. Step 6: Final answer
    x = 109,134,518.85

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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.