Home / 163,243.37-225,264.86-90,642.53

Finding the Fourth Proportional to 163,243.37, 225,264.86 and 90,642.53

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Solution

The fourth proportional to 163,243.37, 225,264.86 and 90,642.53 is: 125,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,243.37 : 225,264.86 = 90,642.53 : x
  2. Step 2: Convert to fraction form
    163,243.37/225,264.86 = 90,642.53/x
  3. Step 3: Cross multiply
    163,243.37x = 225,264.86 × 90,642.53
  4. Step 4: Simplify right side
    163,243.37x = 20,418,576,830.50
  5. Step 5: Solve for x
    x = 20,418,576,830.50/163,243.37
  6. Step 6: Final answer
    x = 125,080.59

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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.