Home / 155,742.72-233,630.40-71,488.48

Finding the Fourth Proportional to 155,742.72, 233,630.40 and 71,488.48

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Solution

The fourth proportional to 155,742.72, 233,630.40 and 71,488.48 is: 107,240.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,742.72 : 233,630.40 = 71,488.48 : x
  2. Step 2: Convert to fraction form
    155,742.72/233,630.40 = 71,488.48/x
  3. Step 3: Cross multiply
    155,742.72x = 233,630.40 × 71,488.48
  4. Step 4: Simplify right side
    155,742.72x = 16,701,882,177.79
  5. Step 5: Solve for x
    x = 16,701,882,177.79/155,742.72
  6. Step 6: Final answer
    x = 107,240.21

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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.