Home / 145,831.98-218,748.89-40,651.86

Finding the Fourth Proportional to 145,831.98, 218,748.89 and 40,651.86

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Solution

The fourth proportional to 145,831.98, 218,748.89 and 40,651.86 is: 60,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,831.98 : 218,748.89 = 40,651.86 : x
  2. Step 2: Convert to fraction form
    145,831.98/218,748.89 = 40,651.86/x
  3. Step 3: Cross multiply
    145,831.98x = 218,748.89 × 40,651.86
  4. Step 4: Simplify right side
    145,831.98x = 8,892,549,251.44
  5. Step 5: Solve for x
    x = 8,892,549,251.44/145,831.98
  6. Step 6: Final answer
    x = 60,978.05

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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.