Home / 211,106.92-316,587.30-61,306.60

Finding the Fourth Proportional to 211,106.92, 316,587.30 and 61,306.60

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Solution

The fourth proportional to 211,106.92, 316,587.30 and 61,306.60 is: 91,938.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,106.92 : 316,587.30 = 61,306.60 : x
  2. Step 2: Convert to fraction form
    211,106.92/316,587.30 = 61,306.60/x
  3. Step 3: Cross multiply
    211,106.92x = 316,587.30 × 61,306.60
  4. Step 4: Simplify right side
    211,106.92x = 19,408,890,966.18
  5. Step 5: Solve for x
    x = 19,408,890,966.18/211,106.92
  6. Step 6: Final answer
    x = 91,938.68

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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.