Home / 112,630.08-155,367.24-72,349.78

Finding the Fourth Proportional to 112,630.08, 155,367.24 and 72,349.78

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Solution

The fourth proportional to 112,630.08, 155,367.24 and 72,349.78 is: 99,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,630.08 : 155,367.24 = 72,349.78 : x
  2. Step 2: Convert to fraction form
    112,630.08/155,367.24 = 72,349.78/x
  3. Step 3: Cross multiply
    112,630.08x = 155,367.24 × 72,349.78
  4. Step 4: Simplify right side
    112,630.08x = 11,240,785,633.21
  5. Step 5: Solve for x
    x = 11,240,785,633.21/112,630.08
  6. Step 6: Final answer
    x = 99,802.70

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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.