Home / 123,511.95-170,447.10-66,923.32

Finding the Fourth Proportional to 123,511.95, 170,447.10 and 66,923.32

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Solution

The fourth proportional to 123,511.95, 170,447.10 and 66,923.32 is: 92,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,511.95 : 170,447.10 = 66,923.32 : x
  2. Step 2: Convert to fraction form
    123,511.95/170,447.10 = 66,923.32/x
  3. Step 3: Cross multiply
    123,511.95x = 170,447.10 × 66,923.32
  4. Step 4: Simplify right side
    123,511.95x = 11,406,885,816.37
  5. Step 5: Solve for x
    x = 11,406,885,816.37/123,511.95
  6. Step 6: Final answer
    x = 92,354.51

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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.