Home / 112,142.15-168,022.81-67,675.48

Finding the Fourth Proportional to 112,142.15, 168,022.81 and 67,675.48

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Solution

The fourth proportional to 112,142.15, 168,022.81 and 67,675.48 is: 101,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,142.15 : 168,022.81 = 67,675.48 : x
  2. Step 2: Convert to fraction form
    112,142.15/168,022.81 = 67,675.48/x
  3. Step 3: Cross multiply
    112,142.15x = 168,022.81 × 67,675.48
  4. Step 4: Simplify right side
    112,142.15x = 11,371,024,317.70
  5. Step 5: Solve for x
    x = 11,371,024,317.70/112,142.15
  6. Step 6: Final answer
    x = 101,398.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.