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Finding the Fourth Proportional to 180,468.78, 249,049.11 and 99,903.75

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Solution

The fourth proportional to 180,468.78, 249,049.11 and 99,903.75 is: 137,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,468.78 : 249,049.11 = 99,903.75 : x
  2. Step 2: Convert to fraction form
    180,468.78/249,049.11 = 99,903.75/x
  3. Step 3: Cross multiply
    180,468.78x = 249,049.11 × 99,903.75
  4. Step 4: Simplify right side
    180,468.78x = 24,880,940,023.16
  5. Step 5: Solve for x
    x = 24,880,940,023.16/180,468.78
  6. Step 6: Final answer
    x = 137,868.39

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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.