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Finding the Fourth Proportional to 166,543.80, 249,815.70 and 137,019.30

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Solution

The fourth proportional to 166,543.80, 249,815.70 and 137,019.30 is: 205,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,543.80 : 249,815.70 = 137,019.30 : x
  2. Step 2: Convert to fraction form
    166,543.80/249,815.70 = 137,019.30/x
  3. Step 3: Cross multiply
    166,543.80x = 249,815.70 × 137,019.30
  4. Step 4: Simplify right side
    166,543.80x = 34,229,572,343.01
  5. Step 5: Solve for x
    x = 34,229,572,343.01/166,543.80
  6. Step 6: Final answer
    x = 205,528.95

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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.