Home / 98,078.04-135,089.88-75,373.59

Finding the Fourth Proportional to 98,078.04, 135,089.88 and 75,373.59

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Solution

The fourth proportional to 98,078.04, 135,089.88 and 75,373.59 is: 103,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,078.04 : 135,089.88 = 75,373.59 : x
  2. Step 2: Convert to fraction form
    98,078.04/135,089.88 = 75,373.59/x
  3. Step 3: Cross multiply
    98,078.04x = 135,089.88 × 75,373.59
  4. Step 4: Simplify right side
    98,078.04x = 10,182,208,692.32
  5. Step 5: Solve for x
    x = 10,182,208,692.32/98,078.04
  6. Step 6: Final answer
    x = 103,817.42

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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.