Home / 143,448.12-215,196.76-43,618.32

Finding the Fourth Proportional to 143,448.12, 215,196.76 and 43,618.32

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Solution

The fourth proportional to 143,448.12, 215,196.76 and 43,618.32 is: 65,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,448.12 : 215,196.76 = 43,618.32 : x
  2. Step 2: Convert to fraction form
    143,448.12/215,196.76 = 43,618.32/x
  3. Step 3: Cross multiply
    143,448.12x = 215,196.76 × 43,618.32
  4. Step 4: Simplify right side
    143,448.12x = 9,386,521,140.64
  5. Step 5: Solve for x
    x = 9,386,521,140.64/143,448.12
  6. Step 6: Final answer
    x = 65,434.95

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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.