Home / 141,490.32-195,252.54-77,828.12

Finding the Fourth Proportional to 141,490.32, 195,252.54 and 77,828.12

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Solution

The fourth proportional to 141,490.32, 195,252.54 and 77,828.12 is: 107,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,490.32 : 195,252.54 = 77,828.12 : x
  2. Step 2: Convert to fraction form
    141,490.32/195,252.54 = 77,828.12/x
  3. Step 3: Cross multiply
    141,490.32x = 195,252.54 × 77,828.12
  4. Step 4: Simplify right side
    141,490.32x = 15,196,138,113.42
  5. Step 5: Solve for x
    x = 15,196,138,113.42/141,490.32
  6. Step 6: Final answer
    x = 107,400.55

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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.