Home / 136,938.99-188,957.02-76,502.12

Finding the Fourth Proportional to 136,938.99, 188,957.02 and 76,502.12

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Solution

The fourth proportional to 136,938.99, 188,957.02 and 76,502.12 is: 105,562.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,938.99 : 188,957.02 = 76,502.12 : x
  2. Step 2: Convert to fraction form
    136,938.99/188,957.02 = 76,502.12/x
  3. Step 3: Cross multiply
    136,938.99x = 188,957.02 × 76,502.12
  4. Step 4: Simplify right side
    136,938.99x = 14,455,612,618.88
  5. Step 5: Solve for x
    x = 14,455,612,618.88/136,938.99
  6. Step 6: Final answer
    x = 105,562.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.