Home / 141,895.89-195,812.28-78,233.76

Finding the Fourth Proportional to 141,895.89, 195,812.28 and 78,233.76

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Solution

The fourth proportional to 141,895.89, 195,812.28 and 78,233.76 is: 107,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,895.89 : 195,812.28 = 78,233.76 : x
  2. Step 2: Convert to fraction form
    141,895.89/195,812.28 = 78,233.76/x
  3. Step 3: Cross multiply
    141,895.89x = 195,812.28 × 78,233.76
  4. Step 4: Simplify right side
    141,895.89x = 15,319,130,918.57
  5. Step 5: Solve for x
    x = 15,319,130,918.57/141,895.89
  6. Step 6: Final answer
    x = 107,960.36

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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.