Home / 144,031.91-198,753.75-79,488.27

Finding the Fourth Proportional to 144,031.91, 198,753.75 and 79,488.27

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Solution

The fourth proportional to 144,031.91, 198,753.75 and 79,488.27 is: 109,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,031.91 : 198,753.75 = 79,488.27 : x
  2. Step 2: Convert to fraction form
    144,031.91/198,753.75 = 79,488.27/x
  3. Step 3: Cross multiply
    144,031.91x = 198,753.75 × 79,488.27
  4. Step 4: Simplify right side
    144,031.91x = 15,798,591,743.51
  5. Step 5: Solve for x
    x = 15,798,591,743.51/144,031.91
  6. Step 6: Final answer
    x = 109,688.14

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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.