Home / 156,741.48-216,304.83-85,122.90

Finding the Fourth Proportional to 156,741.48, 216,304.83 and 85,122.90

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Solution

The fourth proportional to 156,741.48, 216,304.83 and 85,122.90 is: 117,470.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.48 : 216,304.83 = 85,122.90 : x
  2. Step 2: Convert to fraction form
    156,741.48/216,304.83 = 85,122.90/x
  3. Step 3: Cross multiply
    156,741.48x = 216,304.83 × 85,122.90
  4. Step 4: Simplify right side
    156,741.48x = 18,412,494,413.61
  5. Step 5: Solve for x
    x = 18,412,494,413.61/156,741.48
  6. Step 6: Final answer
    x = 117,470.46

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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.