Home / 159,474.07-220,077.03-87,853.60

Finding the Fourth Proportional to 159,474.07, 220,077.03 and 87,853.60

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Solution

The fourth proportional to 159,474.07, 220,077.03 and 87,853.60 is: 121,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,474.07 : 220,077.03 = 87,853.60 : x
  2. Step 2: Convert to fraction form
    159,474.07/220,077.03 = 87,853.60/x
  3. Step 3: Cross multiply
    159,474.07x = 220,077.03 × 87,853.60
  4. Step 4: Simplify right side
    159,474.07x = 19,334,559,362.81
  5. Step 5: Solve for x
    x = 19,334,559,362.81/159,474.07
  6. Step 6: Final answer
    x = 121,239.52

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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.