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Finding the Fourth Proportional to 115,001.70, 172,502.55 and 96,630.90

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Solution

The fourth proportional to 115,001.70, 172,502.55 and 96,630.90 is: 144,946.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,001.70 : 172,502.55 = 96,630.90 : x
  2. Step 2: Convert to fraction form
    115,001.70/172,502.55 = 96,630.90/x
  3. Step 3: Cross multiply
    115,001.70x = 172,502.55 × 96,630.90
  4. Step 4: Simplify right side
    115,001.70x = 16,669,076,658.80
  5. Step 5: Solve for x
    x = 16,669,076,658.80/115,001.70
  6. Step 6: Final answer
    x = 144,946.35

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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.