Home / 98,365.60-135,756.72-60,117.28

Finding the Fourth Proportional to 98,365.60, 135,756.72 and 60,117.28

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Solution

The fourth proportional to 98,365.60, 135,756.72 and 60,117.28 is: 82,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,365.60 : 135,756.72 = 60,117.28 : x
  2. Step 2: Convert to fraction form
    98,365.60/135,756.72 = 60,117.28/x
  3. Step 3: Cross multiply
    98,365.60x = 135,756.72 × 60,117.28
  4. Step 4: Simplify right side
    98,365.60x = 8,161,324,748.12
  5. Step 5: Solve for x
    x = 8,161,324,748.12/98,365.60
  6. Step 6: Final answer
    x = 82,969.30

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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.