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Finding the Fourth Proportional to 159,509.16, 220,120.88 and 90,598.16

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Solution

The fourth proportional to 159,509.16, 220,120.88 and 90,598.16 is: 125,024.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,509.16 : 220,120.88 = 90,598.16 : x
  2. Step 2: Convert to fraction form
    159,509.16/220,120.88 = 90,598.16/x
  3. Step 3: Cross multiply
    159,509.16x = 220,120.88 × 90,598.16
  4. Step 4: Simplify right side
    159,509.16x = 19,942,546,705.58
  5. Step 5: Solve for x
    x = 19,942,546,705.58/159,509.16
  6. Step 6: Final answer
    x = 125,024.46

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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.