Home / 131,615.21-181,629.02-74,266.70

Finding the Fourth Proportional to 131,615.21, 181,629.02 and 74,266.70

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Solution

The fourth proportional to 131,615.21, 181,629.02 and 74,266.70 is: 102,488.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,615.21 : 181,629.02 = 74,266.70 : x
  2. Step 2: Convert to fraction form
    131,615.21/181,629.02 = 74,266.70/x
  3. Step 3: Cross multiply
    131,615.21x = 181,629.02 × 74,266.70
  4. Step 4: Simplify right side
    131,615.21x = 13,488,986,660.16
  5. Step 5: Solve for x
    x = 13,488,986,660.16/131,615.21
  6. Step 6: Final answer
    x = 102,488.06

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1.5x scale

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.