Home / 180,931.52-249,689.50-100,356.42

Finding the Fourth Proportional to 180,931.52, 249,689.50 and 100,356.42

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Solution

The fourth proportional to 180,931.52, 249,689.50 and 100,356.42 is: 138,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,931.52 : 249,689.50 = 100,356.42 : x
  2. Step 2: Convert to fraction form
    180,931.52/249,689.50 = 100,356.42/x
  3. Step 3: Cross multiply
    180,931.52x = 249,689.50 × 100,356.42
  4. Step 4: Simplify right side
    180,931.52x = 25,057,944,331.59
  5. Step 5: Solve for x
    x = 25,057,944,331.59/180,931.52
  6. Step 6: Final answer
    x = 138,494.08

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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.