Home / 123,199.72-170,015.15-69,484.40

Finding the Fourth Proportional to 123,199.72, 170,015.15 and 69,484.40

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Solution

The fourth proportional to 123,199.72, 170,015.15 and 69,484.40 is: 95,888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,199.72 : 170,015.15 = 69,484.40 : x
  2. Step 2: Convert to fraction form
    123,199.72/170,015.15 = 69,484.40/x
  3. Step 3: Cross multiply
    123,199.72x = 170,015.15 × 69,484.40
  4. Step 4: Simplify right side
    123,199.72x = 11,813,400,649.85
  5. Step 5: Solve for x
    x = 11,813,400,649.85/123,199.72
  6. Step 6: Final answer
    x = 95,888.21

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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.