Home / 141,862.74-195,768.44-78,199.16

Finding the Fourth Proportional to 141,862.74, 195,768.44 and 78,199.16

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Solution

The fourth proportional to 141,862.74, 195,768.44 and 78,199.16 is: 107,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,862.74 : 195,768.44 = 78,199.16 : x
  2. Step 2: Convert to fraction form
    141,862.74/195,768.44 = 78,199.16/x
  3. Step 3: Cross multiply
    141,862.74x = 195,768.44 × 78,199.16
  4. Step 4: Simplify right side
    141,862.74x = 15,308,927,562.51
  5. Step 5: Solve for x
    x = 15,308,927,562.51/141,862.74
  6. Step 6: Final answer
    x = 107,913.66

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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.