Home / 98,015.40-147,066.30-45,397.80

Finding the Fourth Proportional to 98,015.40, 147,066.30 and 45,397.80

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Solution

The fourth proportional to 98,015.40, 147,066.30 and 45,397.80 is: 68,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,015.40 : 147,066.30 = 45,397.80 : x
  2. Step 2: Convert to fraction form
    98,015.40/147,066.30 = 45,397.80/x
  3. Step 3: Cross multiply
    98,015.40x = 147,066.30 × 45,397.80
  4. Step 4: Simplify right side
    98,015.40x = 6,676,486,474.14
  5. Step 5: Solve for x
    x = 6,676,486,474.14/98,015.40
  6. Step 6: Final answer
    x = 68,116.71

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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.