Home / 163,020.48-225,008.28-99,393.36

Finding the Fourth Proportional to 163,020.48, 225,008.28 and 99,393.36

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Solution

The fourth proportional to 163,020.48, 225,008.28 and 99,393.36 is: 137,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,020.48 : 225,008.28 = 99,393.36 : x
  2. Step 2: Convert to fraction form
    163,020.48/225,008.28 = 99,393.36/x
  3. Step 3: Cross multiply
    163,020.48x = 225,008.28 × 99,393.36
  4. Step 4: Simplify right side
    163,020.48x = 22,364,328,977.02
  5. Step 5: Solve for x
    x = 22,364,328,977.02/163,020.48
  6. Step 6: Final answer
    x = 137,187.24

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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.