Home / 150,175.31-207,288.05-86,555.45

Finding the Fourth Proportional to 150,175.31, 207,288.05 and 86,555.45

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Solution

The fourth proportional to 150,175.31, 207,288.05 and 86,555.45 is: 119,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,175.31 : 207,288.05 = 86,555.45 : x
  2. Step 2: Convert to fraction form
    150,175.31/207,288.05 = 86,555.45/x
  3. Step 3: Cross multiply
    150,175.31x = 207,288.05 × 86,555.45
  4. Step 4: Simplify right side
    150,175.31x = 17,941,910,014.60
  5. Step 5: Solve for x
    x = 17,941,910,014.60/150,175.31
  6. Step 6: Final answer
    x = 119,473.10

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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.