Home / 219,689.88-329,416.26-99,681.35

Finding the Fourth Proportional to 219,689.88, 329,416.26 and 99,681.35

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Solution

The fourth proportional to 219,689.88, 329,416.26 and 99,681.35 is: 149,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,689.88 : 329,416.26 = 99,681.35 : x
  2. Step 2: Convert to fraction form
    219,689.88/329,416.26 = 99,681.35/x
  3. Step 3: Cross multiply
    219,689.88x = 329,416.26 × 99,681.35
  4. Step 4: Simplify right side
    219,689.88x = 32,836,655,363.26
  5. Step 5: Solve for x
    x = 32,836,655,363.26/219,689.88
  6. Step 6: Final answer
    x = 149,468.22

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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.