Home / 123,343.95-170,214.75-66,755.37

Finding the Fourth Proportional to 123,343.95, 170,214.75 and 66,755.37

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Solution

The fourth proportional to 123,343.95, 170,214.75 and 66,755.37 is: 92,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,343.95 : 170,214.75 = 66,755.37 : x
  2. Step 2: Convert to fraction form
    123,343.95/170,214.75 = 66,755.37/x
  3. Step 3: Cross multiply
    123,343.95x = 170,214.75 × 66,755.37
  4. Step 4: Simplify right side
    123,343.95x = 11,362,748,615.71
  5. Step 5: Solve for x
    x = 11,362,748,615.71/123,343.95
  6. Step 6: Final answer
    x = 92,122.46

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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.