Home / 125,742.78-173,596.77-83,358.72

Finding the Fourth Proportional to 125,742.78, 173,596.77 and 83,358.72

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Solution

The fourth proportional to 125,742.78, 173,596.77 and 83,358.72 is: 115,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,742.78 : 173,596.77 = 83,358.72 : x
  2. Step 2: Convert to fraction form
    125,742.78/173,596.77 = 83,358.72/x
  3. Step 3: Cross multiply
    125,742.78x = 173,596.77 × 83,358.72
  4. Step 4: Simplify right side
    125,742.78x = 14,470,804,543.33
  5. Step 5: Solve for x
    x = 14,470,804,543.33/125,742.78
  6. Step 6: Final answer
    x = 115,082.59

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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.