Home / 156,962.65-216,608.93-85,342.95

Finding the Fourth Proportional to 156,962.65, 216,608.93 and 85,342.95

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Solution

The fourth proportional to 156,962.65, 216,608.93 and 85,342.95 is: 117,773.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,962.65 : 216,608.93 = 85,342.95 : x
  2. Step 2: Convert to fraction form
    156,962.65/216,608.93 = 85,342.95/x
  3. Step 3: Cross multiply
    156,962.65x = 216,608.93 × 85,342.95
  4. Step 4: Simplify right side
    156,962.65x = 18,486,045,082.54
  5. Step 5: Solve for x
    x = 18,486,045,082.54/156,962.65
  6. Step 6: Final answer
    x = 117,773.53

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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.