Home / 123,475.02-170,395.47-66,885.90

Finding the Fourth Proportional to 123,475.02, 170,395.47 and 66,885.90

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Solution

The fourth proportional to 123,475.02, 170,395.47 and 66,885.90 is: 92,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,475.02 : 170,395.47 = 66,885.90 : x
  2. Step 2: Convert to fraction form
    123,475.02/170,395.47 = 66,885.90/x
  3. Step 3: Cross multiply
    123,475.02x = 170,395.47 × 66,885.90
  4. Step 4: Simplify right side
    123,475.02x = 11,397,054,366.87
  5. Step 5: Solve for x
    x = 11,397,054,366.87/123,475.02
  6. Step 6: Final answer
    x = 92,302.51

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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.