Home / 150,285.45-207,343.58-86,621.88

Finding the Fourth Proportional to 150,285.45, 207,343.58 and 86,621.88

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Solution

The fourth proportional to 150,285.45, 207,343.58 and 86,621.88 is: 119,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,285.45 : 207,343.58 = 86,621.88 : x
  2. Step 2: Convert to fraction form
    150,285.45/207,343.58 = 86,621.88/x
  3. Step 3: Cross multiply
    150,285.45x = 207,343.58 × 86,621.88
  4. Step 4: Simplify right side
    150,285.45x = 17,960,490,272.42
  5. Step 5: Solve for x
    x = 17,960,490,272.42/150,285.45
  6. Step 6: Final answer
    x = 119,509.18

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1.5x scale

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.