Home / 129,410.10-178,683.24-127,343.40

Finding the Fourth Proportional to 129,410.10, 178,683.24 and 127,343.40

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Solution

The fourth proportional to 129,410.10, 178,683.24 and 127,343.40 is: 175,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,410.10 : 178,683.24 = 127,343.40 : x
  2. Step 2: Convert to fraction form
    129,410.10/178,683.24 = 127,343.40/x
  3. Step 3: Cross multiply
    129,410.10x = 178,683.24 × 127,343.40
  4. Step 4: Simplify right side
    129,410.10x = 22,754,131,304.62
  5. Step 5: Solve for x
    x = 22,754,131,304.62/129,410.10
  6. Step 6: Final answer
    x = 175,829.64

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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.