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Finding the Fourth Proportional to 100,356.10, 150,534.15 and 98,800.90

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Solution

The fourth proportional to 100,356.10, 150,534.15 and 98,800.90 is: 148,201.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,356.10 : 150,534.15 = 98,800.90 : x
  2. Step 2: Convert to fraction form
    100,356.10/150,534.15 = 98,800.90/x
  3. Step 3: Cross multiply
    100,356.10x = 150,534.15 × 98,800.90
  4. Step 4: Simplify right side
    100,356.10x = 14,872,909,500.74
  5. Step 5: Solve for x
    x = 14,872,909,500.74/100,356.10
  6. Step 6: Final answer
    x = 148,201.35

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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.