Home / 115,621.42-159,554.19-64,634.23

Finding the Fourth Proportional to 115,621.42, 159,554.19 and 64,634.23

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Solution

The fourth proportional to 115,621.42, 159,554.19 and 64,634.23 is: 89,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,621.42 : 159,554.19 = 64,634.23 : x
  2. Step 2: Convert to fraction form
    115,621.42/159,554.19 = 64,634.23/x
  3. Step 3: Cross multiply
    115,621.42x = 159,554.19 × 64,634.23
  4. Step 4: Simplify right side
    115,621.42x = 10,312,662,213.92
  5. Step 5: Solve for x
    x = 10,312,662,213.92/115,621.42
  6. Step 6: Final answer
    x = 89,193.35

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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.