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Finding the Fourth Proportional to 180,488.72, 249,114.48 and 105,080.96

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Solution

The fourth proportional to 180,488.72, 249,114.48 and 105,080.96 is: 145,035.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,488.72 : 249,114.48 = 105,080.96 : x
  2. Step 2: Convert to fraction form
    180,488.72/249,114.48 = 105,080.96/x
  3. Step 3: Cross multiply
    180,488.72x = 249,114.48 × 105,080.96
  4. Step 4: Simplify right side
    180,488.72x = 26,177,188,708.30
  5. Step 5: Solve for x
    x = 26,177,188,708.30/180,488.72
  6. Step 6: Final answer
    x = 145,035.04

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1.5x scale

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.