Home / 159,573.12-220,157.08-99,122.28

Finding the Fourth Proportional to 159,573.12, 220,157.08 and 99,122.28

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Solution

The fourth proportional to 159,573.12, 220,157.08 and 99,122.28 is: 136,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,573.12 : 220,157.08 = 99,122.28 : x
  2. Step 2: Convert to fraction form
    159,573.12/220,157.08 = 99,122.28/x
  3. Step 3: Cross multiply
    159,573.12x = 220,157.08 × 99,122.28
  4. Step 4: Simplify right side
    159,573.12x = 21,822,471,727.74
  5. Step 5: Solve for x
    x = 21,822,471,727.74/159,573.12
  6. Step 6: Final answer
    x = 136,755.31

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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.