Home / 180,678.91-249,333.66-100,104.82

Finding the Fourth Proportional to 180,678.91, 249,333.66 and 100,104.82

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Solution

The fourth proportional to 180,678.91, 249,333.66 and 100,104.82 is: 138,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,678.91 : 249,333.66 = 100,104.82 : x
  2. Step 2: Convert to fraction form
    180,678.91/249,333.66 = 100,104.82/x
  3. Step 3: Cross multiply
    180,678.91x = 249,333.66 × 100,104.82
  4. Step 4: Simplify right side
    180,678.91x = 24,959,501,154.24
  5. Step 5: Solve for x
    x = 24,959,501,154.24/180,678.91
  6. Step 6: Final answer
    x = 138,142.86

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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.