Home / 98,965.25-136,580.69-54,261.89

Finding the Fourth Proportional to 98,965.25, 136,580.69 and 54,261.89

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Solution

The fourth proportional to 98,965.25, 136,580.69 and 54,261.89 is: 74,886.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,965.25 : 136,580.69 = 54,261.89 : x
  2. Step 2: Convert to fraction form
    98,965.25/136,580.69 = 54,261.89/x
  3. Step 3: Cross multiply
    98,965.25x = 136,580.69 × 54,261.89
  4. Step 4: Simplify right side
    98,965.25x = 7,411,126,376.90
  5. Step 5: Solve for x
    x = 7,411,126,376.90/98,965.25
  6. Step 6: Final answer
    x = 74,886.15

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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.