Home / 129,652.02-178,919.52-70,036.02

Finding the Fourth Proportional to 129,652.02, 178,919.52 and 70,036.02

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Solution

The fourth proportional to 129,652.02, 178,919.52 and 70,036.02 is: 96,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,652.02 : 178,919.52 = 70,036.02 : x
  2. Step 2: Convert to fraction form
    129,652.02/178,919.52 = 70,036.02/x
  3. Step 3: Cross multiply
    129,652.02x = 178,919.52 × 70,036.02
  4. Step 4: Simplify right side
    129,652.02x = 12,530,811,081.11
  5. Step 5: Solve for x
    x = 12,530,811,081.11/129,652.02
  6. Step 6: Final answer
    x = 96,649.56

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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.