Home / 143,632.51-215,479.64-71,624.66

Finding the Fourth Proportional to 143,632.51, 215,479.64 and 71,624.66

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Solution

The fourth proportional to 143,632.51, 215,479.64 and 71,624.66 is: 107,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,632.51 : 215,479.64 = 71,624.66 : x
  2. Step 2: Convert to fraction form
    143,632.51/215,479.64 = 71,624.66/x
  3. Step 3: Cross multiply
    143,632.51x = 215,479.64 × 71,624.66
  4. Step 4: Simplify right side
    143,632.51x = 15,433,655,053.59
  5. Step 5: Solve for x
    x = 15,433,655,053.59/143,632.51
  6. Step 6: Final answer
    x = 107,452.38

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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.