Home / 147,781.80-221,670.27-100,278.74

Finding the Fourth Proportional to 147,781.80, 221,670.27 and 100,278.74

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Solution

The fourth proportional to 147,781.80, 221,670.27 and 100,278.74 is: 150,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,781.80 : 221,670.27 = 100,278.74 : x
  2. Step 2: Convert to fraction form
    147,781.80/221,670.27 = 100,278.74/x
  3. Step 3: Cross multiply
    147,781.80x = 221,670.27 × 100,278.74
  4. Step 4: Simplify right side
    147,781.80x = 22,228,815,925.24
  5. Step 5: Solve for x
    x = 22,228,815,925.24/147,781.80
  6. Step 6: Final answer
    x = 150,416.46

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1.5x scale

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.