Home / 123,270.08-170,112.63-66,681.46

Finding the Fourth Proportional to 123,270.08, 170,112.63 and 66,681.46

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Solution

The fourth proportional to 123,270.08, 170,112.63 and 66,681.46 is: 92,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,270.08 : 170,112.63 = 66,681.46 : x
  2. Step 2: Convert to fraction form
    123,270.08/170,112.63 = 66,681.46/x
  3. Step 3: Cross multiply
    123,270.08x = 170,112.63 × 66,681.46
  4. Step 4: Simplify right side
    123,270.08x = 11,343,358,532.84
  5. Step 5: Solve for x
    x = 11,343,358,532.84/123,270.08
  6. Step 6: Final answer
    x = 92,020.37

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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.