Home / 211,209.18-316,884.51-69,061.02

Finding the Fourth Proportional to 211,209.18, 316,884.51 and 69,061.02

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Solution

The fourth proportional to 211,209.18, 316,884.51 and 69,061.02 is: 103,614.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,209.18 : 316,884.51 = 69,061.02 : x
  2. Step 2: Convert to fraction form
    211,209.18/316,884.51 = 69,061.02/x
  3. Step 3: Cross multiply
    211,209.18x = 316,884.51 × 69,061.02
  4. Step 4: Simplify right side
    211,209.18x = 21,884,366,788.66
  5. Step 5: Solve for x
    x = 21,884,366,788.66/211,209.18
  6. Step 6: Final answer
    x = 103,614.66

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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.