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Finding the Fourth Proportional to 180,458.08, 249,025.80 and 99,885.76

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Solution

The fourth proportional to 180,458.08, 249,025.80 and 99,885.76 is: 137,838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,458.08 : 249,025.80 = 99,885.76 : x
  2. Step 2: Convert to fraction form
    180,458.08/249,025.80 = 99,885.76/x
  3. Step 3: Cross multiply
    180,458.08x = 249,025.80 × 99,885.76
  4. Step 4: Simplify right side
    180,458.08x = 24,874,131,292.61
  5. Step 5: Solve for x
    x = 24,874,131,292.61/180,458.08
  6. Step 6: Final answer
    x = 137,838.83

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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.