Home / 123,307.16-170,164.05-66,718.52

Finding the Fourth Proportional to 123,307.16, 170,164.05 and 66,718.52

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Solution

The fourth proportional to 123,307.16, 170,164.05 and 66,718.52 is: 92,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,307.16 : 170,164.05 = 66,718.52 : x
  2. Step 2: Convert to fraction form
    123,307.16/170,164.05 = 66,718.52/x
  3. Step 3: Cross multiply
    123,307.16x = 170,164.05 × 66,718.52
  4. Step 4: Simplify right side
    123,307.16x = 11,353,093,573.21
  5. Step 5: Solve for x
    x = 11,353,093,573.21/123,307.16
  6. Step 6: Final answer
    x = 92,071.65

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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.