Home / 141,678.81-195,510.98-81,207.35

Finding the Fourth Proportional to 141,678.81, 195,510.98 and 81,207.35

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Solution

The fourth proportional to 141,678.81, 195,510.98 and 81,207.35 is: 112,062.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,678.81 : 195,510.98 = 81,207.35 : x
  2. Step 2: Convert to fraction form
    141,678.81/195,510.98 = 81,207.35/x
  3. Step 3: Cross multiply
    141,678.81x = 195,510.98 × 81,207.35
  4. Step 4: Simplify right side
    141,678.81x = 15,876,928,581.70
  5. Step 5: Solve for x
    x = 15,876,928,581.70/141,678.81
  6. Step 6: Final answer
    x = 112,062.83

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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.