Home / 125,280.72-172,895.40-82,764.72

Finding the Fourth Proportional to 125,280.72, 172,895.40 and 82,764.72

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Solution

The fourth proportional to 125,280.72, 172,895.40 and 82,764.72 is: 114,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,280.72 : 172,895.40 = 82,764.72 : x
  2. Step 2: Convert to fraction form
    125,280.72/172,895.40 = 82,764.72/x
  3. Step 3: Cross multiply
    125,280.72x = 172,895.40 × 82,764.72
  4. Step 4: Simplify right side
    125,280.72x = 14,309,639,370.29
  5. Step 5: Solve for x
    x = 14,309,639,370.29/125,280.72
  6. Step 6: Final answer
    x = 114,220.60

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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.