Home / 207,931.80-286,990.32-131,402.16

Finding the Fourth Proportional to 207,931.80, 286,990.32 and 131,402.16

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Solution

The fourth proportional to 207,931.80, 286,990.32 and 131,402.16 is: 181,363.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,931.80 : 286,990.32 = 131,402.16 : x
  2. Step 2: Convert to fraction form
    207,931.80/286,990.32 = 131,402.16/x
  3. Step 3: Cross multiply
    207,931.80x = 286,990.32 × 131,402.16
  4. Step 4: Simplify right side
    207,931.80x = 37,711,147,947.09
  5. Step 5: Solve for x
    x = 37,711,147,947.09/207,931.80
  6. Step 6: Final answer
    x = 181,363.06

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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.