Home / 145,815.78-218,723.76-40,637.52

Finding the Fourth Proportional to 145,815.78, 218,723.76 and 40,637.52

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Solution

The fourth proportional to 145,815.78, 218,723.76 and 40,637.52 is: 60,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,815.78 : 218,723.76 = 40,637.52 : x
  2. Step 2: Convert to fraction form
    145,815.78/218,723.76 = 40,637.52/x
  3. Step 3: Cross multiply
    145,815.78x = 218,723.76 × 40,637.52
  4. Step 4: Simplify right side
    145,815.78x = 8,888,391,171.48
  5. Step 5: Solve for x
    x = 8,888,391,171.48/145,815.78
  6. Step 6: Final answer
    x = 60,956.31

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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.