Home / 156,491.12-215,937-88,517.36

Finding the Fourth Proportional to 156,491.12, 215,937 and 88,517.36

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Solution

The fourth proportional to 156,491.12, 215,937 and 88,517.36 is: 122,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,491.12 : 215,937 = 88,517.36 : x
  2. Step 2: Convert to fraction form
    156,491.12/215,937 = 88,517.36/x
  3. Step 3: Cross multiply
    156,491.12x = 215,937 × 88,517.36
  4. Step 4: Simplify right side
    156,491.12x = 19,114,173,166.32
  5. Step 5: Solve for x
    x = 19,114,173,166.32/156,491.12
  6. Step 6: Final answer
    x = 122,142.22

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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.