Home / 268,632.09-402,669.90-91,079.28

Finding the Fourth Proportional to 268,632.09, 402,669.90 and 91,079.28

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Solution

The fourth proportional to 268,632.09, 402,669.90 and 91,079.28 is: 136,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,632.09 : 402,669.90 = 91,079.28 : x
  2. Step 2: Convert to fraction form
    268,632.09/402,669.90 = 91,079.28/x
  3. Step 3: Cross multiply
    268,632.09x = 402,669.90 × 91,079.28
  4. Step 4: Simplify right side
    268,632.09x = 36,674,884,569.67
  5. Step 5: Solve for x
    x = 36,674,884,569.67/268,632.09
  6. Step 6: Final answer
    x = 136,524.58

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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.