Home / 112,129.02-168,305.76-80,576.10

Finding the Fourth Proportional to 112,129.02, 168,305.76 and 80,576.10

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Solution

The fourth proportional to 112,129.02, 168,305.76 and 80,576.10 is: 120,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,129.02 : 168,305.76 = 80,576.10 : x
  2. Step 2: Convert to fraction form
    112,129.02/168,305.76 = 80,576.10/x
  3. Step 3: Cross multiply
    112,129.02x = 168,305.76 × 80,576.10
  4. Step 4: Simplify right side
    112,129.02x = 13,561,421,748.34
  5. Step 5: Solve for x
    x = 13,561,421,748.34/112,129.02
  6. Step 6: Final answer
    x = 120,944.80

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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.