Home / 115,532.80-159,419.48-64,539.23

Finding the Fourth Proportional to 115,532.80, 159,419.48 and 64,539.23

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Solution

The fourth proportional to 115,532.80, 159,419.48 and 64,539.23 is: 89,055.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,532.80 : 159,419.48 = 64,539.23 : x
  2. Step 2: Convert to fraction form
    115,532.80/159,419.48 = 64,539.23/x
  3. Step 3: Cross multiply
    115,532.80x = 159,419.48 × 64,539.23
  4. Step 4: Simplify right side
    115,532.80x = 10,288,809,366.41
  5. Step 5: Solve for x
    x = 10,288,809,366.41/115,532.80
  6. Step 6: Final answer
    x = 89,055.31

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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.