Home / 98,158.60-135,440.40-57,885.04

Finding the Fourth Proportional to 98,158.60, 135,440.40 and 57,885.04

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Solution

The fourth proportional to 98,158.60, 135,440.40 and 57,885.04 is: 79,870.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,158.60 : 135,440.40 = 57,885.04 : x
  2. Step 2: Convert to fraction form
    98,158.60/135,440.40 = 57,885.04/x
  3. Step 3: Cross multiply
    98,158.60x = 135,440.40 × 57,885.04
  4. Step 4: Simplify right side
    98,158.60x = 7,839,972,971.62
  5. Step 5: Solve for x
    x = 7,839,972,971.62/98,158.60
  6. Step 6: Final answer
    x = 79,870.46

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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.