Home / 409,385.81-614,172.20-125,116.82

Finding the Fourth Proportional to 409,385.81, 614,172.20 and 125,116.82

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Solution

The fourth proportional to 409,385.81, 614,172.20 and 125,116.82 is: 187,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,385.81 : 614,172.20 = 125,116.82 : x
  2. Step 2: Convert to fraction form
    409,385.81/614,172.20 = 125,116.82/x
  3. Step 3: Cross multiply
    409,385.81x = 614,172.20 × 125,116.82
  4. Step 4: Simplify right side
    409,385.81x = 76,843,271,203.10
  5. Step 5: Solve for x
    x = 76,843,271,203.10/409,385.81
  6. Step 6: Final answer
    x = 187,703.80

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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.