Home / 150,159.28-207,129.72-99,172.11

Finding the Fourth Proportional to 150,159.28, 207,129.72 and 99,172.11

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Solution

The fourth proportional to 150,159.28, 207,129.72 and 99,172.11 is: 136,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,159.28 : 207,129.72 = 99,172.11 : x
  2. Step 2: Convert to fraction form
    150,159.28/207,129.72 = 99,172.11/x
  3. Step 3: Cross multiply
    150,159.28x = 207,129.72 × 99,172.11
  4. Step 4: Simplify right side
    150,159.28x = 20,541,490,880.25
  5. Step 5: Solve for x
    x = 20,541,490,880.25/150,159.28
  6. Step 6: Final answer
    x = 136,798.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.