Home / 199,557.42-275,502.32-138,392.49

Finding the Fourth Proportional to 199,557.42, 275,502.32 and 138,392.49

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Solution

The fourth proportional to 199,557.42, 275,502.32 and 138,392.49 is: 191,060.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,557.42 : 275,502.32 = 138,392.49 : x
  2. Step 2: Convert to fraction form
    199,557.42/275,502.32 = 138,392.49/x
  3. Step 3: Cross multiply
    199,557.42x = 275,502.32 × 138,392.49
  4. Step 4: Simplify right side
    199,557.42x = 38,127,451,373.61
  5. Step 5: Solve for x
    x = 38,127,451,373.61/199,557.42
  6. Step 6: Final answer
    x = 191,060.05

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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.