Home / 145,456.58-218,184.91-40,275.55

Finding the Fourth Proportional to 145,456.58, 218,184.91 and 40,275.55

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Solution

The fourth proportional to 145,456.58, 218,184.91 and 40,275.55 is: 60,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,456.58 : 218,184.91 = 40,275.55 : x
  2. Step 2: Convert to fraction form
    145,456.58/218,184.91 = 40,275.55/x
  3. Step 3: Cross multiply
    145,456.58x = 218,184.91 × 40,275.55
  4. Step 4: Simplify right side
    145,456.58x = 8,787,516,196.70
  5. Step 5: Solve for x
    x = 8,787,516,196.70/145,456.58
  6. Step 6: Final answer
    x = 60,413.33

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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.