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Finding the Fourth Proportional to 159,618.96, 220,267.53 and 87,020.28

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Solution

The fourth proportional to 159,618.96, 220,267.53 and 87,020.28 is: 120,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,618.96 : 220,267.53 = 87,020.28 : x
  2. Step 2: Convert to fraction form
    159,618.96/220,267.53 = 87,020.28/x
  3. Step 3: Cross multiply
    159,618.96x = 220,267.53 × 87,020.28
  4. Step 4: Simplify right side
    159,618.96x = 19,167,742,135.51
  5. Step 5: Solve for x
    x = 19,167,742,135.51/159,618.96
  6. Step 6: Final answer
    x = 120,084.37

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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.