Home / 109,031.47-163,569.17-38,908.96

Finding the Fourth Proportional to 109,031.47, 163,569.17 and 38,908.96

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Solution

The fourth proportional to 109,031.47, 163,569.17 and 38,908.96 is: 58,371.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,031.47 : 163,569.17 = 38,908.96 : x
  2. Step 2: Convert to fraction form
    109,031.47/163,569.17 = 38,908.96/x
  3. Step 3: Cross multiply
    109,031.47x = 163,569.17 × 38,908.96
  4. Step 4: Simplify right side
    109,031.47x = 6,364,305,981.11
  5. Step 5: Solve for x
    x = 6,364,305,981.11/109,031.47
  6. Step 6: Final answer
    x = 58,371.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.