Home / 143,398.29-215,043.99-42,169.23

Finding the Fourth Proportional to 143,398.29, 215,043.99 and 42,169.23

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Solution

The fourth proportional to 143,398.29, 215,043.99 and 42,169.23 is: 63,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,398.29 : 215,043.99 = 42,169.23 : x
  2. Step 2: Convert to fraction form
    143,398.29/215,043.99 = 42,169.23/x
  3. Step 3: Cross multiply
    143,398.29x = 215,043.99 × 42,169.23
  4. Step 4: Simplify right side
    143,398.29x = 9,068,240,039.71
  5. Step 5: Solve for x
    x = 9,068,240,039.71/143,398.29
  6. Step 6: Final answer
    x = 63,238.13

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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.