Home / 156,557.41-216,049.70-84,938.02

Finding the Fourth Proportional to 156,557.41, 216,049.70 and 84,938.02

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Solution

The fourth proportional to 156,557.41, 216,049.70 and 84,938.02 is: 117,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,557.41 : 216,049.70 = 84,938.02 : x
  2. Step 2: Convert to fraction form
    156,557.41/216,049.70 = 84,938.02/x
  3. Step 3: Cross multiply
    156,557.41x = 216,049.70 × 84,938.02
  4. Step 4: Simplify right side
    156,557.41x = 18,350,833,739.59
  5. Step 5: Solve for x
    x = 18,350,833,739.59/156,557.41
  6. Step 6: Final answer
    x = 117,214.72

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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.