Home / 150,062.40-207,103.98-86,412.60

Finding the Fourth Proportional to 150,062.40, 207,103.98 and 86,412.60

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Solution

The fourth proportional to 150,062.40, 207,103.98 and 86,412.60 is: 119,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,062.40 : 207,103.98 = 86,412.60 : x
  2. Step 2: Convert to fraction form
    150,062.40/207,103.98 = 86,412.60/x
  3. Step 3: Cross multiply
    150,062.40x = 207,103.98 × 86,412.60
  4. Step 4: Simplify right side
    150,062.40x = 17,896,393,382.15
  5. Step 5: Solve for x
    x = 17,896,393,382.15/150,062.40
  6. Step 6: Final answer
    x = 119,259.68

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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.