Home / 98,901.42-148,376.43-28,781.34

Finding the Fourth Proportional to 98,901.42, 148,376.43 and 28,781.34

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Solution

The fourth proportional to 98,901.42, 148,376.43 and 28,781.34 is: 43,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,901.42 : 148,376.43 = 28,781.34 : x
  2. Step 2: Convert to fraction form
    98,901.42/148,376.43 = 28,781.34/x
  3. Step 3: Cross multiply
    98,901.42x = 148,376.43 × 28,781.34
  4. Step 4: Simplify right side
    98,901.42x = 4,270,472,479.82
  5. Step 5: Solve for x
    x = 4,270,472,479.82/98,901.42
  6. Step 6: Final answer
    x = 43,179.08

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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.