Home / 158,802.12-219,164.33-90,825.30

Finding the Fourth Proportional to 158,802.12, 219,164.33 and 90,825.30

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Solution

The fourth proportional to 158,802.12, 219,164.33 and 90,825.30 is: 125,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,802.12 : 219,164.33 = 90,825.30 : x
  2. Step 2: Convert to fraction form
    158,802.12/219,164.33 = 90,825.30/x
  3. Step 3: Cross multiply
    158,802.12x = 219,164.33 × 90,825.30
  4. Step 4: Simplify right side
    158,802.12x = 19,905,666,248.61
  5. Step 5: Solve for x
    x = 19,905,666,248.61/158,802.12
  6. Step 6: Final answer
    x = 125,348.87

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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.