Home / 99,041.16-148,308.18-54,618.63

Finding the Fourth Proportional to 99,041.16, 148,308.18 and 54,618.63

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Solution

The fourth proportional to 99,041.16, 148,308.18 and 54,618.63 is: 81,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,041.16 : 148,308.18 = 54,618.63 : x
  2. Step 2: Convert to fraction form
    99,041.16/148,308.18 = 54,618.63/x
  3. Step 3: Cross multiply
    99,041.16x = 148,308.18 × 54,618.63
  4. Step 4: Simplify right side
    99,041.16x = 8,100,389,609.39
  5. Step 5: Solve for x
    x = 8,100,389,609.39/99,041.16
  6. Step 6: Final answer
    x = 81,788.11

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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.