Home / 141,663.89-195,496.38-78,001.87

Finding the Fourth Proportional to 141,663.89, 195,496.38 and 78,001.87

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Solution

The fourth proportional to 141,663.89, 195,496.38 and 78,001.87 is: 107,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,663.89 : 195,496.38 = 78,001.87 : x
  2. Step 2: Convert to fraction form
    141,663.89/195,496.38 = 78,001.87/x
  3. Step 3: Cross multiply
    141,663.89x = 195,496.38 × 78,001.87
  4. Step 4: Simplify right side
    141,663.89x = 15,249,083,218.23
  5. Step 5: Solve for x
    x = 15,249,083,218.23/141,663.89
  6. Step 6: Final answer
    x = 107,642.70

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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.