Home / 211,193.72-316,878.05-84,923.40

Finding the Fourth Proportional to 211,193.72, 316,878.05 and 84,923.40

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Solution

The fourth proportional to 211,193.72, 316,878.05 and 84,923.40 is: 127,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,193.72 : 316,878.05 = 84,923.40 : x
  2. Step 2: Convert to fraction form
    211,193.72/316,878.05 = 84,923.40/x
  3. Step 3: Cross multiply
    211,193.72x = 316,878.05 × 84,923.40
  4. Step 4: Simplify right side
    211,193.72x = 26,910,360,966.75
  5. Step 5: Solve for x
    x = 26,910,360,966.75/211,193.72
  6. Step 6: Final answer
    x = 127,420.27

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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.