Home / 159,408.84-220,090.08-99,069.52

Finding the Fourth Proportional to 159,408.84, 220,090.08 and 99,069.52

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Solution

The fourth proportional to 159,408.84, 220,090.08 and 99,069.52 is: 136,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,408.84 : 220,090.08 = 99,069.52 : x
  2. Step 2: Convert to fraction form
    159,408.84/220,090.08 = 99,069.52/x
  3. Step 3: Cross multiply
    159,408.84x = 220,090.08 × 99,069.52
  4. Step 4: Simplify right side
    159,408.84x = 21,804,218,582.36
  5. Step 5: Solve for x
    x = 21,804,218,582.36/159,408.84
  6. Step 6: Final answer
    x = 136,781.74

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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.