Home / 143,929.77-198,584.64-138,254.52

Finding the Fourth Proportional to 143,929.77, 198,584.64 and 138,254.52

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Solution

The fourth proportional to 143,929.77, 198,584.64 and 138,254.52 is: 190,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,929.77 : 198,584.64 = 138,254.52 : x
  2. Step 2: Convert to fraction form
    143,929.77/198,584.64 = 138,254.52/x
  3. Step 3: Cross multiply
    143,929.77x = 198,584.64 × 138,254.52
  4. Step 4: Simplify right side
    143,929.77x = 27,455,224,082.57
  5. Step 5: Solve for x
    x = 27,455,224,082.57/143,929.77
  6. Step 6: Final answer
    x = 190,754.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.