Home / 157,439.17-217,284.63-89,477.23

Finding the Fourth Proportional to 157,439.17, 217,284.63 and 89,477.23

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Solution

The fourth proportional to 157,439.17, 217,284.63 and 89,477.23 is: 123,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,439.17 : 217,284.63 = 89,477.23 : x
  2. Step 2: Convert to fraction form
    157,439.17/217,284.63 = 89,477.23/x
  3. Step 3: Cross multiply
    157,439.17x = 217,284.63 × 89,477.23
  4. Step 4: Simplify right side
    157,439.17x = 19,442,026,813.97
  5. Step 5: Solve for x
    x = 19,442,026,813.97/157,439.17
  6. Step 6: Final answer
    x = 123,489.13

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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.