Home / 141,326.34-195,031.44-77,665.20

Finding the Fourth Proportional to 141,326.34, 195,031.44 and 77,665.20

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Solution

The fourth proportional to 141,326.34, 195,031.44 and 77,665.20 is: 107,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,326.34 : 195,031.44 = 77,665.20 : x
  2. Step 2: Convert to fraction form
    141,326.34/195,031.44 = 77,665.20/x
  3. Step 3: Cross multiply
    141,326.34x = 195,031.44 × 77,665.20
  4. Step 4: Simplify right side
    141,326.34x = 15,147,155,793.89
  5. Step 5: Solve for x
    x = 15,147,155,793.89/141,326.34
  6. Step 6: Final answer
    x = 107,178.58

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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.