Home / 107,492.18-148,380.54-71,669.12

Finding the Fourth Proportional to 107,492.18, 148,380.54 and 71,669.12

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Solution

The fourth proportional to 107,492.18, 148,380.54 and 71,669.12 is: 98,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,492.18 : 148,380.54 = 71,669.12 : x
  2. Step 2: Convert to fraction form
    107,492.18/148,380.54 = 71,669.12/x
  3. Step 3: Cross multiply
    107,492.18x = 148,380.54 × 71,669.12
  4. Step 4: Simplify right side
    107,492.18x = 10,634,302,726.92
  5. Step 5: Solve for x
    x = 10,634,302,726.92/107,492.18
  6. Step 6: Final answer
    x = 98,930.94

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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.