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Finding the Fourth Proportional to 121,284.90, 181,927.35 and 101,601.90

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Solution

The fourth proportional to 121,284.90, 181,927.35 and 101,601.90 is: 152,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.90 : 181,927.35 = 101,601.90 : x
  2. Step 2: Convert to fraction form
    121,284.90/181,927.35 = 101,601.90/x
  3. Step 3: Cross multiply
    121,284.90x = 181,927.35 × 101,601.90
  4. Step 4: Simplify right side
    121,284.90x = 18,484,164,421.97
  5. Step 5: Solve for x
    x = 18,484,164,421.97/121,284.90
  6. Step 6: Final answer
    x = 152,402.85

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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.