Home / 113,199.25-156,050.40-79,101.87

Finding the Fourth Proportional to 113,199.25, 156,050.40 and 79,101.87

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Solution

The fourth proportional to 113,199.25, 156,050.40 and 79,101.87 is: 109,045.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,199.25 : 156,050.40 = 79,101.87 : x
  2. Step 2: Convert to fraction form
    113,199.25/156,050.40 = 79,101.87/x
  3. Step 3: Cross multiply
    113,199.25x = 156,050.40 × 79,101.87
  4. Step 4: Simplify right side
    113,199.25x = 12,343,878,454.25
  5. Step 5: Solve for x
    x = 12,343,878,454.25/113,199.25
  6. Step 6: Final answer
    x = 109,045.59

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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.