Home / 145,974.57-201,444.81-78,906.57

Finding the Fourth Proportional to 145,974.57, 201,444.81 and 78,906.57

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Solution

The fourth proportional to 145,974.57, 201,444.81 and 78,906.57 is: 108,891.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,974.57 : 201,444.81 = 78,906.57 : x
  2. Step 2: Convert to fraction form
    145,974.57/201,444.81 = 78,906.57/x
  3. Step 3: Cross multiply
    145,974.57x = 201,444.81 × 78,906.57
  4. Step 4: Simplify right side
    145,974.57x = 15,895,319,001.40
  5. Step 5: Solve for x
    x = 15,895,319,001.40/145,974.57
  6. Step 6: Final answer
    x = 108,891.01

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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.