Home / 199,327.77-275,138.98-118,780.56

Finding the Fourth Proportional to 199,327.77, 275,138.98 and 118,780.56

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Solution

The fourth proportional to 199,327.77, 275,138.98 and 118,780.56 is: 163,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,327.77 : 275,138.98 = 118,780.56 : x
  2. Step 2: Convert to fraction form
    199,327.77/275,138.98 = 118,780.56/x
  3. Step 3: Cross multiply
    199,327.77x = 275,138.98 × 118,780.56
  4. Step 4: Simplify right side
    199,327.77x = 32,681,161,825.28
  5. Step 5: Solve for x
    x = 32,681,161,825.28/199,327.77
  6. Step 6: Final answer
    x = 163,956.89

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1.5x scale

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.