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Finding the Fourth Proportional to 152,056.80, 209,866.86 and 88,403.76

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Solution

The fourth proportional to 152,056.80, 209,866.86 and 88,403.76 is: 122,013.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,056.80 : 209,866.86 = 88,403.76 : x
  2. Step 2: Convert to fraction form
    152,056.80/209,866.86 = 88,403.76/x
  3. Step 3: Cross multiply
    152,056.80x = 209,866.86 × 88,403.76
  4. Step 4: Simplify right side
    152,056.80x = 18,553,019,523.39
  5. Step 5: Solve for x
    x = 18,553,019,523.39/152,056.80
  6. Step 6: Final answer
    x = 122,013.74

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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.