Home / 151,521.30-209,124.07-91,152.96

Finding the Fourth Proportional to 151,521.30, 209,124.07 and 91,152.96

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Solution

The fourth proportional to 151,521.30, 209,124.07 and 91,152.96 is: 125,805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,521.30 : 209,124.07 = 91,152.96 : x
  2. Step 2: Convert to fraction form
    151,521.30/209,124.07 = 91,152.96/x
  3. Step 3: Cross multiply
    151,521.30x = 209,124.07 × 91,152.96
  4. Step 4: Simplify right side
    151,521.30x = 19,062,277,987.75
  5. Step 5: Solve for x
    x = 19,062,277,987.75/151,521.30
  6. Step 6: Final answer
    x = 125,805.93

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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.