Home / 124,068.51-171,242.10-75,681.14

Finding the Fourth Proportional to 124,068.51, 171,242.10 and 75,681.14

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Solution

The fourth proportional to 124,068.51, 171,242.10 and 75,681.14 is: 104,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,068.51 : 171,242.10 = 75,681.14 : x
  2. Step 2: Convert to fraction form
    124,068.51/171,242.10 = 75,681.14/x
  3. Step 3: Cross multiply
    124,068.51x = 171,242.10 × 75,681.14
  4. Step 4: Simplify right side
    124,068.51x = 12,959,796,487.78
  5. Step 5: Solve for x
    x = 12,959,796,487.78/124,068.51
  6. Step 6: Final answer
    x = 104,456.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.