Home / 215,733.16-323,569.50-91,045

Finding the Fourth Proportional to 215,733.16, 323,569.50 and 91,045

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Solution

The fourth proportional to 215,733.16, 323,569.50 and 91,045 is: 136,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,733.16 : 323,569.50 = 91,045 : x
  2. Step 2: Convert to fraction form
    215,733.16/323,569.50 = 91,045/x
  3. Step 3: Cross multiply
    215,733.16x = 323,569.50 × 91,045
  4. Step 4: Simplify right side
    215,733.16x = 29,459,385,127.50
  5. Step 5: Solve for x
    x = 29,459,385,127.50/215,733.16
  6. Step 6: Final answer
    x = 136,554.74

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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.