Home / 113,299.04-156,332.20-64,240.80

Finding the Fourth Proportional to 113,299.04, 156,332.20 and 64,240.80

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Solution

The fourth proportional to 113,299.04, 156,332.20 and 64,240.80 is: 88,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,299.04 : 156,332.20 = 64,240.80 : x
  2. Step 2: Convert to fraction form
    113,299.04/156,332.20 = 64,240.80/x
  3. Step 3: Cross multiply
    113,299.04x = 156,332.20 × 64,240.80
  4. Step 4: Simplify right side
    113,299.04x = 10,042,905,593.76
  5. Step 5: Solve for x
    x = 10,042,905,593.76/113,299.04
  6. Step 6: Final answer
    x = 88,640.69

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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.