Home / 156,412.80-234,561.60-51,235.20

Finding the Fourth Proportional to 156,412.80, 234,561.60 and 51,235.20

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Solution

The fourth proportional to 156,412.80, 234,561.60 and 51,235.20 is: 76,833.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,412.80 : 234,561.60 = 51,235.20 : x
  2. Step 2: Convert to fraction form
    156,412.80/234,561.60 = 51,235.20/x
  3. Step 3: Cross multiply
    156,412.80x = 234,561.60 × 51,235.20
  4. Step 4: Simplify right side
    156,412.80x = 12,017,810,488.32
  5. Step 5: Solve for x
    x = 12,017,810,488.32/156,412.80
  6. Step 6: Final answer
    x = 76,833.93

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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.