Home / 159,436.64-220,032.54-87,816.62

Finding the Fourth Proportional to 159,436.64, 220,032.54 and 87,816.62

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Solution

The fourth proportional to 159,436.64, 220,032.54 and 87,816.62 is: 121,192.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,436.64 : 220,032.54 = 87,816.62 : x
  2. Step 2: Convert to fraction form
    159,436.64/220,032.54 = 87,816.62/x
  3. Step 3: Cross multiply
    159,436.64x = 220,032.54 × 87,816.62
  4. Step 4: Simplify right side
    159,436.64x = 19,322,513,952.81
  5. Step 5: Solve for x
    x = 19,322,513,952.81/159,436.64
  6. Step 6: Final answer
    x = 121,192.43

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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.