Home / 155,801.18-215,020.80-92,159.48

Finding the Fourth Proportional to 155,801.18, 215,020.80 and 92,159.48

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Solution

The fourth proportional to 155,801.18, 215,020.80 and 92,159.48 is: 127,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,801.18 : 215,020.80 = 92,159.48 : x
  2. Step 2: Convert to fraction form
    155,801.18/215,020.80 = 92,159.48/x
  3. Step 3: Cross multiply
    155,801.18x = 215,020.80 × 92,159.48
  4. Step 4: Simplify right side
    155,801.18x = 19,816,205,117.18
  5. Step 5: Solve for x
    x = 19,816,205,117.18/155,801.18
  6. Step 6: Final answer
    x = 127,189.06

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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.