Home / 131,700.88-181,382.52-113,790.16

Finding the Fourth Proportional to 131,700.88, 181,382.52 and 113,790.16

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Solution

The fourth proportional to 131,700.88, 181,382.52 and 113,790.16 is: 156,715.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,700.88 : 181,382.52 = 113,790.16 : x
  2. Step 2: Convert to fraction form
    131,700.88/181,382.52 = 113,790.16/x
  3. Step 3: Cross multiply
    131,700.88x = 181,382.52 × 113,790.16
  4. Step 4: Simplify right side
    131,700.88x = 20,639,545,972.00
  5. Step 5: Solve for x
    x = 20,639,545,972.00/131,700.88
  6. Step 6: Final answer
    x = 156,715.32

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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.