Home / 186,017.16-256,269.72-129,330.12

Finding the Fourth Proportional to 186,017.16, 256,269.72 and 129,330.12

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Solution

The fourth proportional to 186,017.16, 256,269.72 and 129,330.12 is: 178,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,017.16 : 256,269.72 = 129,330.12 : x
  2. Step 2: Convert to fraction form
    186,017.16/256,269.72 = 129,330.12/x
  3. Step 3: Cross multiply
    186,017.16x = 256,269.72 × 129,330.12
  4. Step 4: Simplify right side
    186,017.16x = 33,143,393,639.97
  5. Step 5: Solve for x
    x = 33,143,393,639.97/186,017.16
  6. Step 6: Final answer
    x = 178,173.85

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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.