Home / 121,944.34-182,878.44-72,011.08

Finding the Fourth Proportional to 121,944.34, 182,878.44 and 72,011.08

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Solution

The fourth proportional to 121,944.34, 182,878.44 and 72,011.08 is: 107,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,944.34 : 182,878.44 = 72,011.08 : x
  2. Step 2: Convert to fraction form
    121,944.34/182,878.44 = 72,011.08/x
  3. Step 3: Cross multiply
    121,944.34x = 182,878.44 × 72,011.08
  4. Step 4: Simplify right side
    121,944.34x = 13,169,273,973.12
  5. Step 5: Solve for x
    x = 13,169,273,973.12/121,944.34
  6. Step 6: Final answer
    x = 107,994.14

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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.