Home / 155,898.10-215,134.14-98,568.28

Finding the Fourth Proportional to 155,898.10, 215,134.14 and 98,568.28

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Solution

The fourth proportional to 155,898.10, 215,134.14 and 98,568.28 is: 136,020.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,898.10 : 215,134.14 = 98,568.28 : x
  2. Step 2: Convert to fraction form
    155,898.10/215,134.14 = 98,568.28/x
  3. Step 3: Cross multiply
    155,898.10x = 215,134.14 × 98,568.28
  4. Step 4: Simplify right side
    155,898.10x = 21,205,402,149.08
  5. Step 5: Solve for x
    x = 21,205,402,149.08/155,898.10
  6. Step 6: Final answer
    x = 136,020.91

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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.