Home / 119,211.32-164,443.20-74,421.56

Finding the Fourth Proportional to 119,211.32, 164,443.20 and 74,421.56

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Solution

The fourth proportional to 119,211.32, 164,443.20 and 74,421.56 is: 102,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,211.32 : 164,443.20 = 74,421.56 : x
  2. Step 2: Convert to fraction form
    119,211.32/164,443.20 = 74,421.56/x
  3. Step 3: Cross multiply
    119,211.32x = 164,443.20 × 74,421.56
  4. Step 4: Simplify right side
    119,211.32x = 12,238,119,607.42
  5. Step 5: Solve for x
    x = 12,238,119,607.42/119,211.32
  6. Step 6: Final answer
    x = 102,659.04

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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.