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Finding the Fourth Proportional to 181,901.38, 251,031.47 and 101,328.88

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Solution

The fourth proportional to 181,901.38, 251,031.47 and 101,328.88 is: 139,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,901.38 : 251,031.47 = 101,328.88 : x
  2. Step 2: Convert to fraction form
    181,901.38/251,031.47 = 101,328.88/x
  3. Step 3: Cross multiply
    181,901.38x = 251,031.47 × 101,328.88
  4. Step 4: Simplify right side
    181,901.38x = 25,436,738,074.11
  5. Step 5: Solve for x
    x = 25,436,738,074.11/181,901.38
  6. Step 6: Final answer
    x = 139,838.07

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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.