Home / 124,717.20-186,870.60-72,034.80

Finding the Fourth Proportional to 124,717.20, 186,870.60 and 72,034.80

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Solution

The fourth proportional to 124,717.20, 186,870.60 and 72,034.80 is: 107,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,717.20 : 186,870.60 = 72,034.80 : x
  2. Step 2: Convert to fraction form
    124,717.20/186,870.60 = 72,034.80/x
  3. Step 3: Cross multiply
    124,717.20x = 186,870.60 × 72,034.80
  4. Step 4: Simplify right side
    124,717.20x = 13,461,186,296.88
  5. Step 5: Solve for x
    x = 13,461,186,296.88/124,717.20
  6. Step 6: Final answer
    x = 107,933.68

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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.