Home / 113,211.99-169,817.97-42,132.78

Finding the Fourth Proportional to 113,211.99, 169,817.97 and 42,132.78

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Solution

The fourth proportional to 113,211.99, 169,817.97 and 42,132.78 is: 63,199.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,211.99 : 169,817.97 = 42,132.78 : x
  2. Step 2: Convert to fraction form
    113,211.99/169,817.97 = 42,132.78/x
  3. Step 3: Cross multiply
    113,211.99x = 169,817.97 × 42,132.78
  4. Step 4: Simplify right side
    113,211.99x = 7,154,903,170.06
  5. Step 5: Solve for x
    x = 7,154,903,170.06/113,211.99
  6. Step 6: Final answer
    x = 63,199.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.