Home / 123,943.13-171,056.10-73,642.13

Finding the Fourth Proportional to 123,943.13, 171,056.10 and 73,642.13

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Solution

The fourth proportional to 123,943.13, 171,056.10 and 73,642.13 is: 101,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,943.13 : 171,056.10 = 73,642.13 : x
  2. Step 2: Convert to fraction form
    123,943.13/171,056.10 = 73,642.13/x
  3. Step 3: Cross multiply
    123,943.13x = 171,056.10 × 73,642.13
  4. Step 4: Simplify right side
    123,943.13x = 12,596,934,698.21
  5. Step 5: Solve for x
    x = 12,596,934,698.21/123,943.13
  6. Step 6: Final answer
    x = 101,634.80

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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.