Home / 231,156.30-346,636.02-90,816.50

Finding the Fourth Proportional to 231,156.30, 346,636.02 and 90,816.50

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Solution

The fourth proportional to 231,156.30, 346,636.02 and 90,816.50 is: 136,186.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,156.30 : 346,636.02 = 90,816.50 : x
  2. Step 2: Convert to fraction form
    231,156.30/346,636.02 = 90,816.50/x
  3. Step 3: Cross multiply
    231,156.30x = 346,636.02 × 90,816.50
  4. Step 4: Simplify right side
    231,156.30x = 31,480,270,110.33
  5. Step 5: Solve for x
    x = 31,480,270,110.33/231,156.30
  6. Step 6: Final answer
    x = 136,186.08

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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.