Home / 159,023.07-219,453.54-86,425.96

Finding the Fourth Proportional to 159,023.07, 219,453.54 and 86,425.96

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Solution

The fourth proportional to 159,023.07, 219,453.54 and 86,425.96 is: 119,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,023.07 : 219,453.54 = 86,425.96 : x
  2. Step 2: Convert to fraction form
    159,023.07/219,453.54 = 86,425.96/x
  3. Step 3: Cross multiply
    159,023.07x = 219,453.54 × 86,425.96
  4. Step 4: Simplify right side
    159,023.07x = 18,966,483,572.77
  5. Step 5: Solve for x
    x = 18,966,483,572.77/159,023.07
  6. Step 6: Final answer
    x = 119,268.75

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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.