Home / 151,909.12-209,652.40-91,510.26

Finding the Fourth Proportional to 151,909.12, 209,652.40 and 91,510.26

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Solution

The fourth proportional to 151,909.12, 209,652.40 and 91,510.26 is: 126,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,909.12 : 209,652.40 = 91,510.26 : x
  2. Step 2: Convert to fraction form
    151,909.12/209,652.40 = 91,510.26/x
  3. Step 3: Cross multiply
    151,909.12x = 209,652.40 × 91,510.26
  4. Step 4: Simplify right side
    151,909.12x = 19,185,345,633.62
  5. Step 5: Solve for x
    x = 19,185,345,633.62/151,909.12
  6. Step 6: Final answer
    x = 126,294.89

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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.