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Finding the Fourth Proportional to 153,609.70, 230,414.55 and 90,624.10

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Solution

The fourth proportional to 153,609.70, 230,414.55 and 90,624.10 is: 135,936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,609.70 : 230,414.55 = 90,624.10 : x
  2. Step 2: Convert to fraction form
    153,609.70/230,414.55 = 90,624.10/x
  3. Step 3: Cross multiply
    153,609.70x = 230,414.55 × 90,624.10
  4. Step 4: Simplify right side
    153,609.70x = 20,881,111,220.66
  5. Step 5: Solve for x
    x = 20,881,111,220.66/153,609.70
  6. Step 6: Final answer
    x = 135,936.15

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1.5x scale

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.