Home / 180,688.73-249,350.20-100,121.47

Finding the Fourth Proportional to 180,688.73, 249,350.20 and 100,121.47

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Solution

The fourth proportional to 180,688.73, 249,350.20 and 100,121.47 is: 138,167.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,688.73 : 249,350.20 = 100,121.47 : x
  2. Step 2: Convert to fraction form
    180,688.73/249,350.20 = 100,121.47/x
  3. Step 3: Cross multiply
    180,688.73x = 249,350.20 × 100,121.47
  4. Step 4: Simplify right side
    180,688.73x = 24,965,307,695.11
  5. Step 5: Solve for x
    x = 24,965,307,695.11/180,688.73
  6. Step 6: Final answer
    x = 138,167.49

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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.