Home / 140,108.28-193,349.40-89,807.28

Finding the Fourth Proportional to 140,108.28, 193,349.40 and 89,807.28

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Solution

The fourth proportional to 140,108.28, 193,349.40 and 89,807.28 is: 123,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,108.28 : 193,349.40 = 89,807.28 : x
  2. Step 2: Convert to fraction form
    140,108.28/193,349.40 = 89,807.28/x
  3. Step 3: Cross multiply
    140,108.28x = 193,349.40 × 89,807.28
  4. Step 4: Simplify right side
    140,108.28x = 17,364,183,703.63
  5. Step 5: Solve for x
    x = 17,364,183,703.63/140,108.28
  6. Step 6: Final answer
    x = 123,934.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.