Home / 143,937.54-215,799.66-68,986.32

Finding the Fourth Proportional to 143,937.54, 215,799.66 and 68,986.32

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Solution

The fourth proportional to 143,937.54, 215,799.66 and 68,986.32 is: 103,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,937.54 : 215,799.66 = 68,986.32 : x
  2. Step 2: Convert to fraction form
    143,937.54/215,799.66 = 68,986.32/x
  3. Step 3: Cross multiply
    143,937.54x = 215,799.66 × 68,986.32
  4. Step 4: Simplify right side
    143,937.54x = 14,887,224,400.65
  5. Step 5: Solve for x
    x = 14,887,224,400.65/143,937.54
  6. Step 6: Final answer
    x = 103,428.36

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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.