Home / 157,897.26-217,901.07-86,280.30

Finding the Fourth Proportional to 157,897.26, 217,901.07 and 86,280.30

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Solution

The fourth proportional to 157,897.26, 217,901.07 and 86,280.30 is: 119,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,897.26 : 217,901.07 = 86,280.30 : x
  2. Step 2: Convert to fraction form
    157,897.26/217,901.07 = 86,280.30/x
  3. Step 3: Cross multiply
    157,897.26x = 217,901.07 × 86,280.30
  4. Step 4: Simplify right side
    157,897.26x = 18,800,569,689.92
  5. Step 5: Solve for x
    x = 18,800,569,689.92/157,897.26
  6. Step 6: Final answer
    x = 119,068.37

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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.