Home / 113,631.03-156,811.93-62,645.78

Finding the Fourth Proportional to 113,631.03, 156,811.93 and 62,645.78

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Solution

The fourth proportional to 113,631.03, 156,811.93 and 62,645.78 is: 86,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,631.03 : 156,811.93 = 62,645.78 : x
  2. Step 2: Convert to fraction form
    113,631.03/156,811.93 = 62,645.78/x
  3. Step 3: Cross multiply
    113,631.03x = 156,811.93 × 62,645.78
  4. Step 4: Simplify right side
    113,631.03x = 9,823,605,903.57
  5. Step 5: Solve for x
    x = 9,823,605,903.57/113,631.03
  6. Step 6: Final answer
    x = 86,451.79

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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.