Home / 156,937.12-216,570.67-85,318.93

Finding the Fourth Proportional to 156,937.12, 216,570.67 and 85,318.93

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Solution

The fourth proportional to 156,937.12, 216,570.67 and 85,318.93 is: 117,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937.12 : 216,570.67 = 85,318.93 : x
  2. Step 2: Convert to fraction form
    156,937.12/216,570.67 = 85,318.93/x
  3. Step 3: Cross multiply
    156,937.12x = 216,570.67 × 85,318.93
  4. Step 4: Simplify right side
    156,937.12x = 18,477,577,833.78
  5. Step 5: Solve for x
    x = 18,477,577,833.78/156,937.12
  6. Step 6: Final answer
    x = 117,738.73

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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.