Home / 100,006.20-149,989.50-28,937.16

Finding the Fourth Proportional to 100,006.20, 149,989.50 and 28,937.16

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Solution

The fourth proportional to 100,006.20, 149,989.50 and 28,937.16 is: 43,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,006.20 : 149,989.50 = 28,937.16 : x
  2. Step 2: Convert to fraction form
    100,006.20/149,989.50 = 28,937.16/x
  3. Step 3: Cross multiply
    100,006.20x = 149,989.50 × 28,937.16
  4. Step 4: Simplify right side
    100,006.20x = 4,340,270,159.82
  5. Step 5: Solve for x
    x = 4,340,270,159.82/100,006.20
  6. Step 6: Final answer
    x = 43,400.01

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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.