Home / 142,277.29-196,327.93-78,606.43

Finding the Fourth Proportional to 142,277.29, 196,327.93 and 78,606.43

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Solution

The fourth proportional to 142,277.29, 196,327.93 and 78,606.43 is: 108,468.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,277.29 : 196,327.93 = 78,606.43 : x
  2. Step 2: Convert to fraction form
    142,277.29/196,327.93 = 78,606.43/x
  3. Step 3: Cross multiply
    142,277.29x = 196,327.93 × 78,606.43
  4. Step 4: Simplify right side
    142,277.29x = 15,432,637,686.59
  5. Step 5: Solve for x
    x = 15,432,637,686.59/142,277.29
  6. Step 6: Final answer
    x = 108,468.74

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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.