Home / 129,616.14-178,870.26-70,000.14

Finding the Fourth Proportional to 129,616.14, 178,870.26 and 70,000.14

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Solution

The fourth proportional to 129,616.14, 178,870.26 and 70,000.14 is: 96,600.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,616.14 : 178,870.26 = 70,000.14 : x
  2. Step 2: Convert to fraction form
    129,616.14/178,870.26 = 70,000.14/x
  3. Step 3: Cross multiply
    129,616.14x = 178,870.26 × 70,000.14
  4. Step 4: Simplify right side
    129,616.14x = 12,520,943,241.84
  5. Step 5: Solve for x
    x = 12,520,943,241.84/129,616.14
  6. Step 6: Final answer
    x = 96,600.19

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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.