Home / 130,219.32-179,683.02-79,205.88

Finding the Fourth Proportional to 130,219.32, 179,683.02 and 79,205.88

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Solution

The fourth proportional to 130,219.32, 179,683.02 and 79,205.88 is: 109,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,219.32 : 179,683.02 = 79,205.88 : x
  2. Step 2: Convert to fraction form
    130,219.32/179,683.02 = 79,205.88/x
  3. Step 3: Cross multiply
    130,219.32x = 179,683.02 × 79,205.88
  4. Step 4: Simplify right side
    130,219.32x = 14,231,951,720.16
  5. Step 5: Solve for x
    x = 14,231,951,720.16/130,219.32
  6. Step 6: Final answer
    x = 109,292.17

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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.