Home / 145,899.23-218,830.39-39,291.71

Finding the Fourth Proportional to 145,899.23, 218,830.39 and 39,291.71

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Solution

The fourth proportional to 145,899.23, 218,830.39 and 39,291.71 is: 58,932.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,899.23 : 218,830.39 = 39,291.71 : x
  2. Step 2: Convert to fraction form
    145,899.23/218,830.39 = 39,291.71/x
  3. Step 3: Cross multiply
    145,899.23x = 218,830.39 × 39,291.71
  4. Step 4: Simplify right side
    145,899.23x = 8,598,219,251.70
  5. Step 5: Solve for x
    x = 8,598,219,251.70/145,899.23
  6. Step 6: Final answer
    x = 58,932.59

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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.