Home / 159,538.86-220,160.76-86,942.39

Finding the Fourth Proportional to 159,538.86, 220,160.76 and 86,942.39

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Solution

The fourth proportional to 159,538.86, 220,160.76 and 86,942.39 is: 119,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,538.86 : 220,160.76 = 86,942.39 : x
  2. Step 2: Convert to fraction form
    159,538.86/220,160.76 = 86,942.39/x
  3. Step 3: Cross multiply
    159,538.86x = 220,160.76 × 86,942.39
  4. Step 4: Simplify right side
    159,538.86x = 19,141,301,557.81
  5. Step 5: Solve for x
    x = 19,141,301,557.81/159,538.86
  6. Step 6: Final answer
    x = 119,978.93

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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.