Home / 145,923.08-218,865-40,752.68

Finding the Fourth Proportional to 145,923.08, 218,865 and 40,752.68

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Solution

The fourth proportional to 145,923.08, 218,865 and 40,752.68 is: 61,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,923.08 : 218,865 = 40,752.68 : x
  2. Step 2: Convert to fraction form
    145,923.08/218,865 = 40,752.68/x
  3. Step 3: Cross multiply
    145,923.08x = 218,865 × 40,752.68
  4. Step 4: Simplify right side
    145,923.08x = 8,919,335,308.20
  5. Step 5: Solve for x
    x = 8,919,335,308.20/145,923.08
  6. Step 6: Final answer
    x = 61,123.54

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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.