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Finding the Fourth Proportional to 102,000.10, 153,000.15 and 91,632.10

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Solution

The fourth proportional to 102,000.10, 153,000.15 and 91,632.10 is: 137,448.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,000.10 : 153,000.15 = 91,632.10 : x
  2. Step 2: Convert to fraction form
    102,000.10/153,000.15 = 91,632.10/x
  3. Step 3: Cross multiply
    102,000.10x = 153,000.15 × 91,632.10
  4. Step 4: Simplify right side
    102,000.10x = 14,019,725,044.82
  5. Step 5: Solve for x
    x = 14,019,725,044.82/102,000.10
  6. Step 6: Final answer
    x = 137,448.15

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Similar ratio
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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.