Home / 141,312.66-195,009.29-77,649.09

Finding the Fourth Proportional to 141,312.66, 195,009.29 and 77,649.09

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Solution

The fourth proportional to 141,312.66, 195,009.29 and 77,649.09 is: 107,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,312.66 : 195,009.29 = 77,649.09 : x
  2. Step 2: Convert to fraction form
    141,312.66/195,009.29 = 77,649.09/x
  3. Step 3: Cross multiply
    141,312.66x = 195,009.29 × 77,649.09
  4. Step 4: Simplify right side
    141,312.66x = 15,142,293,521.80
  5. Step 5: Solve for x
    x = 15,142,293,521.80/141,312.66
  6. Step 6: Final answer
    x = 107,154.54

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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.