Home / 141,442.64-195,192.24-77,780.88

Finding the Fourth Proportional to 141,442.64, 195,192.24 and 77,780.88

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Solution

The fourth proportional to 141,442.64, 195,192.24 and 77,780.88 is: 107,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,442.64 : 195,192.24 = 77,780.88 : x
  2. Step 2: Convert to fraction form
    141,442.64/195,192.24 = 77,780.88/x
  3. Step 3: Cross multiply
    141,442.64x = 195,192.24 × 77,780.88
  4. Step 4: Simplify right side
    141,442.64x = 15,182,224,196.37
  5. Step 5: Solve for x
    x = 15,182,224,196.37/141,442.64
  6. Step 6: Final answer
    x = 107,338.38

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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.