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Finding the Fourth Proportional to 152,671.52, 228,645.27 and 120,979.69

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Solution

The fourth proportional to 152,671.52, 228,645.27 and 120,979.69 is: 181,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,671.52 : 228,645.27 = 120,979.69 : x
  2. Step 2: Convert to fraction form
    152,671.52/228,645.27 = 120,979.69/x
  3. Step 3: Cross multiply
    152,671.52x = 228,645.27 × 120,979.69
  4. Step 4: Simplify right side
    152,671.52x = 27,661,433,312.95
  5. Step 5: Solve for x
    x = 27,661,433,312.95/152,671.52
  6. Step 6: Final answer
    x = 181,182.66

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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.