Home / 157,341.69-217,023.30-100,727.55

Finding the Fourth Proportional to 157,341.69, 217,023.30 and 100,727.55

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Solution

The fourth proportional to 157,341.69, 217,023.30 and 100,727.55 is: 138,934.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,341.69 : 217,023.30 = 100,727.55 : x
  2. Step 2: Convert to fraction form
    157,341.69/217,023.30 = 100,727.55/x
  3. Step 3: Cross multiply
    157,341.69x = 217,023.30 × 100,727.55
  4. Step 4: Simplify right side
    157,341.69x = 21,860,225,301.92
  5. Step 5: Solve for x
    x = 21,860,225,301.92/157,341.69
  6. Step 6: Final answer
    x = 138,934.73

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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.