Home / 180,499.46-249,081.18-99,921.30

Finding the Fourth Proportional to 180,499.46, 249,081.18 and 99,921.30

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Solution

The fourth proportional to 180,499.46, 249,081.18 and 99,921.30 is: 137,886.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,499.46 : 249,081.18 = 99,921.30 : x
  2. Step 2: Convert to fraction form
    180,499.46/249,081.18 = 99,921.30/x
  3. Step 3: Cross multiply
    180,499.46x = 249,081.18 × 99,921.30
  4. Step 4: Simplify right side
    180,499.46x = 24,888,515,311.13
  5. Step 5: Solve for x
    x = 24,888,515,311.13/180,499.46
  6. Step 6: Final answer
    x = 137,886.92

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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.