Home / 152,707.10-229,233.45-90,412.70

Finding the Fourth Proportional to 152,707.10, 229,233.45 and 90,412.70

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Solution

The fourth proportional to 152,707.10, 229,233.45 and 90,412.70 is: 135,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,707.10 : 229,233.45 = 90,412.70 : x
  2. Step 2: Convert to fraction form
    152,707.10/229,233.45 = 90,412.70/x
  3. Step 3: Cross multiply
    152,707.10x = 229,233.45 × 90,412.70
  4. Step 4: Simplify right side
    152,707.10x = 20,725,615,144.82
  5. Step 5: Solve for x
    x = 20,725,615,144.82/152,707.10
  6. Step 6: Final answer
    x = 135,721.36

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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.