Home / 159,740.67-220,434.70-91,709.77

Finding the Fourth Proportional to 159,740.67, 220,434.70 and 91,709.77

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Solution

The fourth proportional to 159,740.67, 220,434.70 and 91,709.77 is: 126,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,740.67 : 220,434.70 = 91,709.77 : x
  2. Step 2: Convert to fraction form
    159,740.67/220,434.70 = 91,709.77/x
  3. Step 3: Cross multiply
    159,740.67x = 220,434.70 × 91,709.77
  4. Step 4: Simplify right side
    159,740.67x = 20,216,015,637.02
  5. Step 5: Solve for x
    x = 20,216,015,637.02/159,740.67
  6. Step 6: Final answer
    x = 126,555.22

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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.