Home / 159,386.40-219,944.64-91,406.24

Finding the Fourth Proportional to 159,386.40, 219,944.64 and 91,406.24

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Solution

The fourth proportional to 159,386.40, 219,944.64 and 91,406.24 is: 126,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,386.40 : 219,944.64 = 91,406.24 : x
  2. Step 2: Convert to fraction form
    159,386.40/219,944.64 = 91,406.24/x
  3. Step 3: Cross multiply
    159,386.40x = 219,944.64 × 91,406.24
  4. Step 4: Simplify right side
    159,386.40x = 20,104,312,550.55
  5. Step 5: Solve for x
    x = 20,104,312,550.55/159,386.40
  6. Step 6: Final answer
    x = 126,135.68

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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.