Home / 123,127.06-169,915.33-69,412.08

Finding the Fourth Proportional to 123,127.06, 169,915.33 and 69,412.08

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Solution

The fourth proportional to 123,127.06, 169,915.33 and 69,412.08 is: 95,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,127.06 : 169,915.33 = 69,412.08 : x
  2. Step 2: Convert to fraction form
    123,127.06/169,915.33 = 69,412.08/x
  3. Step 3: Cross multiply
    123,127.06x = 169,915.33 × 69,412.08
  4. Step 4: Simplify right side
    123,127.06x = 11,794,176,479.19
  5. Step 5: Solve for x
    x = 11,794,176,479.19/123,127.06
  6. Step 6: Final answer
    x = 95,788.66

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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.