Home / 113,605.50-156,778.83-63,307.74

Finding the Fourth Proportional to 113,605.50, 156,778.83 and 63,307.74

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Solution

The fourth proportional to 113,605.50, 156,778.83 and 63,307.74 is: 87,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,605.50 : 156,778.83 = 63,307.74 : x
  2. Step 2: Convert to fraction form
    113,605.50/156,778.83 = 63,307.74/x
  3. Step 3: Cross multiply
    113,605.50x = 156,778.83 × 63,307.74
  4. Step 4: Simplify right side
    113,605.50x = 9,925,313,407.14
  5. Step 5: Solve for x
    x = 9,925,313,407.14/113,605.50
  6. Step 6: Final answer
    x = 87,366.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.