Home / 123,205.64-170,023.55-69,490.49

Finding the Fourth Proportional to 123,205.64, 170,023.55 and 69,490.49

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Solution

The fourth proportional to 123,205.64, 170,023.55 and 69,490.49 is: 95,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,205.64 : 170,023.55 = 69,490.49 : x
  2. Step 2: Convert to fraction form
    123,205.64/170,023.55 = 69,490.49/x
  3. Step 3: Cross multiply
    123,205.64x = 170,023.55 × 69,490.49
  4. Step 4: Simplify right side
    123,205.64x = 11,815,018,603.47
  5. Step 5: Solve for x
    x = 11,815,018,603.47/123,205.64
  6. Step 6: Final answer
    x = 95,896.74

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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.