Home / 97,943.40-147,228.30-91,009.80

Finding the Fourth Proportional to 97,943.40, 147,228.30 and 91,009.80

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Solution

The fourth proportional to 97,943.40, 147,228.30 and 91,009.80 is: 136,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,943.40 : 147,228.30 = 91,009.80 : x
  2. Step 2: Convert to fraction form
    97,943.40/147,228.30 = 91,009.80/x
  3. Step 3: Cross multiply
    97,943.40x = 147,228.30 × 91,009.80
  4. Step 4: Simplify right side
    97,943.40x = 13,399,218,137.34
  5. Step 5: Solve for x
    x = 13,399,218,137.34/97,943.40
  6. Step 6: Final answer
    x = 136,805.73

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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.