Home / 145,977.89-218,955.90-40,805.06

Finding the Fourth Proportional to 145,977.89, 218,955.90 and 40,805.06

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Solution

The fourth proportional to 145,977.89, 218,955.90 and 40,805.06 is: 61,204.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,977.89 : 218,955.90 = 40,805.06 : x
  2. Step 2: Convert to fraction form
    145,977.89/218,955.90 = 40,805.06/x
  3. Step 3: Cross multiply
    145,977.89x = 218,955.90 × 40,805.06
  4. Step 4: Simplify right side
    145,977.89x = 8,934,508,636.85
  5. Step 5: Solve for x
    x = 8,934,508,636.85/145,977.89
  6. Step 6: Final answer
    x = 61,204.53

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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.