Home / 112,139.02-168,320.76-80,586.10

Finding the Fourth Proportional to 112,139.02, 168,320.76 and 80,586.10

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Solution

The fourth proportional to 112,139.02, 168,320.76 and 80,586.10 is: 120,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,139.02 : 168,320.76 = 80,586.10 : x
  2. Step 2: Convert to fraction form
    112,139.02/168,320.76 = 80,586.10/x
  3. Step 3: Cross multiply
    112,139.02x = 168,320.76 × 80,586.10
  4. Step 4: Simplify right side
    112,139.02x = 13,564,313,597.44
  5. Step 5: Solve for x
    x = 13,564,313,597.44/112,139.02
  6. Step 6: Final answer
    x = 120,959.80

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1.5x scale

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.