Home / 123,417.51-170,316.98-66,828.88

Finding the Fourth Proportional to 123,417.51, 170,316.98 and 66,828.88

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Solution

The fourth proportional to 123,417.51, 170,316.98 and 66,828.88 is: 92,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,417.51 : 170,316.98 = 66,828.88 : x
  2. Step 2: Convert to fraction form
    123,417.51/170,316.98 = 66,828.88/x
  3. Step 3: Cross multiply
    123,417.51x = 170,316.98 × 66,828.88
  4. Step 4: Simplify right side
    123,417.51x = 11,382,093,018.38
  5. Step 5: Solve for x
    x = 11,382,093,018.38/123,417.51
  6. Step 6: Final answer
    x = 92,224.30

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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.