Home / 129,695.04-178,979.31-70,079.04

Finding the Fourth Proportional to 129,695.04, 178,979.31 and 70,079.04

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Solution

The fourth proportional to 129,695.04, 178,979.31 and 70,079.04 is: 96,709.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,695.04 : 178,979.31 = 70,079.04 : x
  2. Step 2: Convert to fraction form
    129,695.04/178,979.31 = 70,079.04/x
  3. Step 3: Cross multiply
    129,695.04x = 178,979.31 × 70,079.04
  4. Step 4: Simplify right side
    129,695.04x = 12,542,698,224.66
  5. Step 5: Solve for x
    x = 12,542,698,224.66/129,695.04
  6. Step 6: Final answer
    x = 96,709.16

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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.