Home / 113,220.56-156,079.70-79,123.18

Finding the Fourth Proportional to 113,220.56, 156,079.70 and 79,123.18

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Solution

The fourth proportional to 113,220.56, 156,079.70 and 79,123.18 is: 109,074.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,220.56 : 156,079.70 = 79,123.18 : x
  2. Step 2: Convert to fraction form
    113,220.56/156,079.70 = 79,123.18/x
  3. Step 3: Cross multiply
    113,220.56x = 156,079.70 × 79,123.18
  4. Step 4: Simplify right side
    113,220.56x = 12,349,522,197.45
  5. Step 5: Solve for x
    x = 12,349,522,197.45/113,220.56
  6. Step 6: Final answer
    x = 109,074.91

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1.5x scale

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.