Home / 142,524.24-196,669.28-78,860.40

Finding the Fourth Proportional to 142,524.24, 196,669.28 and 78,860.40

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Solution

The fourth proportional to 142,524.24, 196,669.28 and 78,860.40 is: 108,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,524.24 : 196,669.28 = 78,860.40 : x
  2. Step 2: Convert to fraction form
    142,524.24/196,669.28 = 78,860.40/x
  3. Step 3: Cross multiply
    142,524.24x = 196,669.28 × 78,860.40
  4. Step 4: Simplify right side
    142,524.24x = 15,509,418,088.51
  5. Step 5: Solve for x
    x = 15,509,418,088.51/142,524.24
  6. Step 6: Final answer
    x = 108,819.51

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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.