Home / 145,394.73-218,075.22-40,221.90

Finding the Fourth Proportional to 145,394.73, 218,075.22 and 40,221.90

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Solution

The fourth proportional to 145,394.73, 218,075.22 and 40,221.90 is: 60,328.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,394.73 : 218,075.22 = 40,221.90 : x
  2. Step 2: Convert to fraction form
    145,394.73/218,075.22 = 40,221.90/x
  3. Step 3: Cross multiply
    145,394.73x = 218,075.22 × 40,221.90
  4. Step 4: Simplify right side
    145,394.73x = 8,771,399,691.32
  5. Step 5: Solve for x
    x = 8,771,399,691.32/145,394.73
  6. Step 6: Final answer
    x = 60,328.18

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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.