Home / 113,217.56-156,075.56-79,120.18

Finding the Fourth Proportional to 113,217.56, 156,075.56 and 79,120.18

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Solution

The fourth proportional to 113,217.56, 156,075.56 and 79,120.18 is: 109,070.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,217.56 : 156,075.56 = 79,120.18 : x
  2. Step 2: Convert to fraction form
    113,217.56/156,075.56 = 79,120.18/x
  3. Step 3: Cross multiply
    113,217.56x = 156,075.56 × 79,120.18
  4. Step 4: Simplify right side
    113,217.56x = 12,348,726,400.80
  5. Step 5: Solve for x
    x = 12,348,726,400.80/113,217.56
  6. Step 6: Final answer
    x = 109,070.77

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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.