Home / 156,318.42-234,510.45-51,129.18

Finding the Fourth Proportional to 156,318.42, 234,510.45 and 51,129.18

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Solution

The fourth proportional to 156,318.42, 234,510.45 and 51,129.18 is: 76,704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,318.42 : 234,510.45 = 51,129.18 : x
  2. Step 2: Convert to fraction form
    156,318.42/234,510.45 = 51,129.18/x
  3. Step 3: Cross multiply
    156,318.42x = 234,510.45 × 51,129.18
  4. Step 4: Simplify right side
    156,318.42x = 11,990,327,009.93
  5. Step 5: Solve for x
    x = 11,990,327,009.93/156,318.42
  6. Step 6: Final answer
    x = 76,704.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.