Home / 147,494.42-221,074.34-129,690.71

Finding the Fourth Proportional to 147,494.42, 221,074.34 and 129,690.71

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Solution

The fourth proportional to 147,494.42, 221,074.34 and 129,690.71 is: 194,388.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,494.42 : 221,074.34 = 129,690.71 : x
  2. Step 2: Convert to fraction form
    147,494.42/221,074.34 = 129,690.71/x
  3. Step 3: Cross multiply
    147,494.42x = 221,074.34 × 129,690.71
  4. Step 4: Simplify right side
    147,494.42x = 28,671,286,363.56
  5. Step 5: Solve for x
    x = 28,671,286,363.56/147,494.42
  6. Step 6: Final answer
    x = 194,388.96

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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.