Home / 155,877.12-215,053.92-127,702.08

Finding the Fourth Proportional to 155,877.12, 215,053.92 and 127,702.08

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Solution

The fourth proportional to 155,877.12, 215,053.92 and 127,702.08 is: 176,182.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,877.12 : 215,053.92 = 127,702.08 : x
  2. Step 2: Convert to fraction form
    155,877.12/215,053.92 = 127,702.08/x
  3. Step 3: Cross multiply
    155,877.12x = 215,053.92 × 127,702.08
  4. Step 4: Simplify right side
    155,877.12x = 27,462,832,896.15
  5. Step 5: Solve for x
    x = 27,462,832,896.15/155,877.12
  6. Step 6: Final answer
    x = 176,182.58

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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.