Home / 145,856.13-218,821.10-40,675.09

Finding the Fourth Proportional to 145,856.13, 218,821.10 and 40,675.09

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Solution

The fourth proportional to 145,856.13, 218,821.10 and 40,675.09 is: 61,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,856.13 : 218,821.10 = 40,675.09 : x
  2. Step 2: Convert to fraction form
    145,856.13/218,821.10 = 40,675.09/x
  3. Step 3: Cross multiply
    145,856.13x = 218,821.10 × 40,675.09
  4. Step 4: Simplify right side
    145,856.13x = 8,900,567,936.40
  5. Step 5: Solve for x
    x = 8,900,567,936.40/145,856.13
  6. Step 6: Final answer
    x = 61,022.93

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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.