Home / 109,423.36-164,149.40-42,854.84

Finding the Fourth Proportional to 109,423.36, 164,149.40 and 42,854.84

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Solution

The fourth proportional to 109,423.36, 164,149.40 and 42,854.84 is: 64,287.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,423.36 : 164,149.40 = 42,854.84 : x
  2. Step 2: Convert to fraction form
    109,423.36/164,149.40 = 42,854.84/x
  3. Step 3: Cross multiply
    109,423.36x = 164,149.40 × 42,854.84
  4. Step 4: Simplify right side
    109,423.36x = 7,034,596,241.77
  5. Step 5: Solve for x
    x = 7,034,596,241.77/109,423.36
  6. Step 6: Final answer
    x = 64,287.88

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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.