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Finding the Fourth Proportional to 185,703.77, 278,448.81 and 99,042.72

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Solution

The fourth proportional to 185,703.77, 278,448.81 and 99,042.72 is: 148,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,703.77 : 278,448.81 = 99,042.72 : x
  2. Step 2: Convert to fraction form
    185,703.77/278,448.81 = 99,042.72/x
  3. Step 3: Cross multiply
    185,703.77x = 278,448.81 × 99,042.72
  4. Step 4: Simplify right side
    185,703.77x = 27,578,327,523.16
  5. Step 5: Solve for x
    x = 27,578,327,523.16/185,703.77
  6. Step 6: Final answer
    x = 148,507.10

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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.