Home / 136,565.40-204,848.10-80,578.20

Finding the Fourth Proportional to 136,565.40, 204,848.10 and 80,578.20

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Solution

The fourth proportional to 136,565.40, 204,848.10 and 80,578.20 is: 120,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,565.40 : 204,848.10 = 80,578.20 : x
  2. Step 2: Convert to fraction form
    136,565.40/204,848.10 = 80,578.20/x
  3. Step 3: Cross multiply
    136,565.40x = 204,848.10 × 80,578.20
  4. Step 4: Simplify right side
    136,565.40x = 16,506,291,171.42
  5. Step 5: Solve for x
    x = 16,506,291,171.42/136,565.40
  6. Step 6: Final answer
    x = 120,867.30

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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.