Home / 124,513.20-186,551.10-102,205.80

Finding the Fourth Proportional to 124,513.20, 186,551.10 and 102,205.80

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Solution

The fourth proportional to 124,513.20, 186,551.10 and 102,205.80 is: 153,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,513.20 : 186,551.10 = 102,205.80 : x
  2. Step 2: Convert to fraction form
    124,513.20/186,551.10 = 102,205.80/x
  3. Step 3: Cross multiply
    124,513.20x = 186,551.10 × 102,205.80
  4. Step 4: Simplify right side
    124,513.20x = 19,066,604,416.38
  5. Step 5: Solve for x
    x = 19,066,604,416.38/124,513.20
  6. Step 6: Final answer
    x = 153,129.18

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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.