Home / 98,905.52-148,553.40-84,979.28

Finding the Fourth Proportional to 98,905.52, 148,553.40 and 84,979.28

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Solution

The fourth proportional to 98,905.52, 148,553.40 and 84,979.28 is: 127,636.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,905.52 : 148,553.40 = 84,979.28 : x
  2. Step 2: Convert to fraction form
    98,905.52/148,553.40 = 84,979.28/x
  3. Step 3: Cross multiply
    98,905.52x = 148,553.40 × 84,979.28
  4. Step 4: Simplify right side
    98,905.52x = 12,623,960,973.55
  5. Step 5: Solve for x
    x = 12,623,960,973.55/98,905.52
  6. Step 6: Final answer
    x = 127,636.57

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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.