Home / 142,165.32-213,280.78-75,669.58

Finding the Fourth Proportional to 142,165.32, 213,280.78 and 75,669.58

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Solution

The fourth proportional to 142,165.32, 213,280.78 and 75,669.58 is: 113,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,165.32 : 213,280.78 = 75,669.58 : x
  2. Step 2: Convert to fraction form
    142,165.32/213,280.78 = 75,669.58/x
  3. Step 3: Cross multiply
    142,165.32x = 213,280.78 × 75,669.58
  4. Step 4: Simplify right side
    142,165.32x = 16,138,867,044.67
  5. Step 5: Solve for x
    x = 16,138,867,044.67/142,165.32
  6. Step 6: Final answer
    x = 113,521.83

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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.