Home / 163,320.57-225,406.80-99,695.34

Finding the Fourth Proportional to 163,320.57, 225,406.80 and 99,695.34

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Solution

The fourth proportional to 163,320.57, 225,406.80 and 99,695.34 is: 137,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,320.57 : 225,406.80 = 99,695.34 : x
  2. Step 2: Convert to fraction form
    163,320.57/225,406.80 = 99,695.34/x
  3. Step 3: Cross multiply
    163,320.57x = 225,406.80 × 99,695.34
  4. Step 4: Simplify right side
    163,320.57x = 22,472,007,564.31
  5. Step 5: Solve for x
    x = 22,472,007,564.31/163,320.57
  6. Step 6: Final answer
    x = 137,594.47

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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.