Home / 150,217.31-207,322.65-85,686.23

Finding the Fourth Proportional to 150,217.31, 207,322.65 and 85,686.23

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Solution

The fourth proportional to 150,217.31, 207,322.65 and 85,686.23 is: 118,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,217.31 : 207,322.65 = 85,686.23 : x
  2. Step 2: Convert to fraction form
    150,217.31/207,322.65 = 85,686.23/x
  3. Step 3: Cross multiply
    150,217.31x = 207,322.65 × 85,686.23
  4. Step 4: Simplify right side
    150,217.31x = 17,764,695,235.50
  5. Step 5: Solve for x
    x = 17,764,695,235.50/150,217.31
  6. Step 6: Final answer
    x = 118,259.98

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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.