Home / 124,270.31-186,320.40-86,850.74

Finding the Fourth Proportional to 124,270.31, 186,320.40 and 86,850.74

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Solution

The fourth proportional to 124,270.31, 186,320.40 and 86,850.74 is: 130,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,270.31 : 186,320.40 = 86,850.74 : x
  2. Step 2: Convert to fraction form
    124,270.31/186,320.40 = 86,850.74/x
  3. Step 3: Cross multiply
    124,270.31x = 186,320.40 × 86,850.74
  4. Step 4: Simplify right side
    124,270.31x = 16,182,063,685.49
  5. Step 5: Solve for x
    x = 16,182,063,685.49/124,270.31
  6. Step 6: Final answer
    x = 130,216.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.