Home / 112,736.27-155,501.13-72,500.93

Finding the Fourth Proportional to 112,736.27, 155,501.13 and 72,500.93

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Solution

The fourth proportional to 112,736.27, 155,501.13 and 72,500.93 is: 100,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,736.27 : 155,501.13 = 72,500.93 : x
  2. Step 2: Convert to fraction form
    112,736.27/155,501.13 = 72,500.93/x
  3. Step 3: Cross multiply
    112,736.27x = 155,501.13 × 72,500.93
  4. Step 4: Simplify right side
    112,736.27x = 11,273,976,541.05
  5. Step 5: Solve for x
    x = 11,273,976,541.05/112,736.27
  6. Step 6: Final answer
    x = 100,003.10

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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.