Home / 114,531.76-158,061.29-66,135.72

Finding the Fourth Proportional to 114,531.76, 158,061.29 and 66,135.72

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Solution

The fourth proportional to 114,531.76, 158,061.29 and 66,135.72 is: 91,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,531.76 : 158,061.29 = 66,135.72 : x
  2. Step 2: Convert to fraction form
    114,531.76/158,061.29 = 66,135.72/x
  3. Step 3: Cross multiply
    114,531.76x = 158,061.29 × 66,135.72
  4. Step 4: Simplify right side
    114,531.76x = 10,453,497,218.28
  5. Step 5: Solve for x
    x = 10,453,497,218.28/114,531.76
  6. Step 6: Final answer
    x = 91,271.60

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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.