Home / 181,271.20-250,147.30-100,703.78

Finding the Fourth Proportional to 181,271.20, 250,147.30 and 100,703.78

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Solution

The fourth proportional to 181,271.20, 250,147.30 and 100,703.78 is: 138,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,271.20 : 250,147.30 = 100,703.78 : x
  2. Step 2: Convert to fraction form
    181,271.20/250,147.30 = 100,703.78/x
  3. Step 3: Cross multiply
    181,271.20x = 250,147.30 × 100,703.78
  4. Step 4: Simplify right side
    181,271.20x = 25,190,778,666.79
  5. Step 5: Solve for x
    x = 25,190,778,666.79/181,271.20
  6. Step 6: Final answer
    x = 138,967.35

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1.5x scale

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.