Home / 140,013.36-193,218.48-76,349.52

Finding the Fourth Proportional to 140,013.36, 193,218.48 and 76,349.52

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Solution

The fourth proportional to 140,013.36, 193,218.48 and 76,349.52 is: 105,362.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,013.36 : 193,218.48 = 76,349.52 : x
  2. Step 2: Convert to fraction form
    140,013.36/193,218.48 = 76,349.52/x
  3. Step 3: Cross multiply
    140,013.36x = 193,218.48 × 76,349.52
  4. Step 4: Simplify right side
    140,013.36x = 14,752,138,203.13
  5. Step 5: Solve for x
    x = 14,752,138,203.13/140,013.36
  6. Step 6: Final answer
    x = 105,362.36

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1.5x scale

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.