Home / 130,950.40-180,711.04-74,359.04

Finding the Fourth Proportional to 130,950.40, 180,711.04 and 74,359.04

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Solution

The fourth proportional to 130,950.40, 180,711.04 and 74,359.04 is: 102,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,950.40 : 180,711.04 = 74,359.04 : x
  2. Step 2: Convert to fraction form
    130,950.40/180,711.04 = 74,359.04/x
  3. Step 3: Cross multiply
    130,950.40x = 180,711.04 × 74,359.04
  4. Step 4: Simplify right side
    130,950.40x = 13,437,499,451.80
  5. Step 5: Solve for x
    x = 13,437,499,451.80/130,950.40
  6. Step 6: Final answer
    x = 102,615.18

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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.