Home / 154,748.40-213,645.98-101,123.16

Finding the Fourth Proportional to 154,748.40, 213,645.98 and 101,123.16

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Solution

The fourth proportional to 154,748.40, 213,645.98 and 101,123.16 is: 139,610.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,748.40 : 213,645.98 = 101,123.16 : x
  2. Step 2: Convert to fraction form
    154,748.40/213,645.98 = 101,123.16/x
  3. Step 3: Cross multiply
    154,748.40x = 213,645.98 × 101,123.16
  4. Step 4: Simplify right side
    154,748.40x = 21,604,556,618.90
  5. Step 5: Solve for x
    x = 21,604,556,618.90/154,748.40
  6. Step 6: Final answer
    x = 139,610.86

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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.