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Finding the Fourth Proportional to 159,900.96, 220,663.64 and 88,281.12

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Solution

The fourth proportional to 159,900.96, 220,663.64 and 88,281.12 is: 121,828.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,900.96 : 220,663.64 = 88,281.12 : x
  2. Step 2: Convert to fraction form
    159,900.96/220,663.64 = 88,281.12/x
  3. Step 3: Cross multiply
    159,900.96x = 220,663.64 × 88,281.12
  4. Step 4: Simplify right side
    159,900.96x = 19,480,433,282.48
  5. Step 5: Solve for x
    x = 19,480,433,282.48/159,900.96
  6. Step 6: Final answer
    x = 121,828.12

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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.