Home / 140,066.39-193,307.75-77,983.13

Finding the Fourth Proportional to 140,066.39, 193,307.75 and 77,983.13

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Solution

The fourth proportional to 140,066.39, 193,307.75 and 77,983.13 is: 107,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,066.39 : 193,307.75 = 77,983.13 : x
  2. Step 2: Convert to fraction form
    140,066.39/193,307.75 = 77,983.13/x
  3. Step 3: Cross multiply
    140,066.39x = 193,307.75 × 77,983.13
  4. Step 4: Simplify right side
    140,066.39x = 15,074,743,784.05
  5. Step 5: Solve for x
    x = 15,074,743,784.05/140,066.39
  6. Step 6: Final answer
    x = 107,625.70

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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.