Home / 153,036.90-229,572.81-40,721.76

Finding the Fourth Proportional to 153,036.90, 229,572.81 and 40,721.76

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Solution

The fourth proportional to 153,036.90, 229,572.81 and 40,721.76 is: 61,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,036.90 : 229,572.81 = 40,721.76 : x
  2. Step 2: Convert to fraction form
    153,036.90/229,572.81 = 40,721.76/x
  3. Step 3: Cross multiply
    153,036.90x = 229,572.81 × 40,721.76
  4. Step 4: Simplify right side
    153,036.90x = 9,348,608,871.35
  5. Step 5: Solve for x
    x = 9,348,608,871.35/153,036.90
  6. Step 6: Final answer
    x = 61,087.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.