Home / 186,366.15-257,209.02-138,755.16

Finding the Fourth Proportional to 186,366.15, 257,209.02 and 138,755.16

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Solution

The fourth proportional to 186,366.15, 257,209.02 and 138,755.16 is: 191,499.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,366.15 : 257,209.02 = 138,755.16 : x
  2. Step 2: Convert to fraction form
    186,366.15/257,209.02 = 138,755.16/x
  3. Step 3: Cross multiply
    186,366.15x = 257,209.02 × 138,755.16
  4. Step 4: Simplify right side
    186,366.15x = 35,689,078,723.54
  5. Step 5: Solve for x
    x = 35,689,078,723.54/186,366.15
  6. Step 6: Final answer
    x = 191,499.79

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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.