Home / 98,043.60-146,719.80-89,749.20

Finding the Fourth Proportional to 98,043.60, 146,719.80 and 89,749.20

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Solution

The fourth proportional to 98,043.60, 146,719.80 and 89,749.20 is: 134,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,043.60 : 146,719.80 = 89,749.20 : x
  2. Step 2: Convert to fraction form
    98,043.60/146,719.80 = 89,749.20/x
  3. Step 3: Cross multiply
    98,043.60x = 146,719.80 × 89,749.20
  4. Step 4: Simplify right side
    98,043.60x = 13,167,984,674.16
  5. Step 5: Solve for x
    x = 13,167,984,674.16/98,043.60
  6. Step 6: Final answer
    x = 134,307.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.