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Finding the Fourth Proportional to 100,368.10, 150,552.15 and 98,812.90

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Solution

The fourth proportional to 100,368.10, 150,552.15 and 98,812.90 is: 148,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,368.10 : 150,552.15 = 98,812.90 : x
  2. Step 2: Convert to fraction form
    100,368.10/150,552.15 = 98,812.90/x
  3. Step 3: Cross multiply
    100,368.10x = 150,552.15 × 98,812.90
  4. Step 4: Simplify right side
    100,368.10x = 14,876,494,542.74
  5. Step 5: Solve for x
    x = 14,876,494,542.74/100,368.10
  6. Step 6: Final answer
    x = 148,219.35

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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.