Home / 159,775.32-220,569.85-99,365.43

Finding the Fourth Proportional to 159,775.32, 220,569.85 and 99,365.43

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Solution

The fourth proportional to 159,775.32, 220,569.85 and 99,365.43 is: 137,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,775.32 : 220,569.85 = 99,365.43 : x
  2. Step 2: Convert to fraction form
    159,775.32/220,569.85 = 99,365.43/x
  3. Step 3: Cross multiply
    159,775.32x = 220,569.85 × 99,365.43
  4. Step 4: Simplify right side
    159,775.32x = 21,917,017,535.09
  5. Step 5: Solve for x
    x = 21,917,017,535.09/159,775.32
  6. Step 6: Final answer
    x = 137,173.98

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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.