Home / 119,421.58-164,870.04-79,190.02

Finding the Fourth Proportional to 119,421.58, 164,870.04 and 79,190.02

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Solution

The fourth proportional to 119,421.58, 164,870.04 and 79,190.02 is: 109,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,421.58 : 164,870.04 = 79,190.02 : x
  2. Step 2: Convert to fraction form
    119,421.58/164,870.04 = 79,190.02/x
  3. Step 3: Cross multiply
    119,421.58x = 164,870.04 × 79,190.02
  4. Step 4: Simplify right side
    119,421.58x = 13,056,061,765.00
  5. Step 5: Solve for x
    x = 13,056,061,765.00/119,421.58
  6. Step 6: Final answer
    x = 109,327.49

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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.