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Finding the Fourth Proportional to 108,534.70, 162,802.05 and 100,240.30

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Solution

The fourth proportional to 108,534.70, 162,802.05 and 100,240.30 is: 150,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,534.70 : 162,802.05 = 100,240.30 : x
  2. Step 2: Convert to fraction form
    108,534.70/162,802.05 = 100,240.30/x
  3. Step 3: Cross multiply
    108,534.70x = 162,802.05 × 100,240.30
  4. Step 4: Simplify right side
    108,534.70x = 16,319,326,332.62
  5. Step 5: Solve for x
    x = 16,319,326,332.62/108,534.70
  6. Step 6: Final answer
    x = 150,360.45

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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.