Home / 159,579.28-220,220.94-87,962.08

Finding the Fourth Proportional to 159,579.28, 220,220.94 and 87,962.08

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Solution

The fourth proportional to 159,579.28, 220,220.94 and 87,962.08 is: 121,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,579.28 : 220,220.94 = 87,962.08 : x
  2. Step 2: Convert to fraction form
    159,579.28/220,220.94 = 87,962.08/x
  3. Step 3: Cross multiply
    159,579.28x = 220,220.94 × 87,962.08
  4. Step 4: Simplify right side
    159,579.28x = 19,371,091,941.96
  5. Step 5: Solve for x
    x = 19,371,091,941.96/159,579.28
  6. Step 6: Final answer
    x = 121,388.52

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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.