Home / 102,340.80-153,526.32-52,449.12

Finding the Fourth Proportional to 102,340.80, 153,526.32 and 52,449.12

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Solution

The fourth proportional to 102,340.80, 153,526.32 and 52,449.12 is: 78,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,340.80 : 153,526.32 = 52,449.12 : x
  2. Step 2: Convert to fraction form
    102,340.80/153,526.32 = 52,449.12/x
  3. Step 3: Cross multiply
    102,340.80x = 153,526.32 × 52,449.12
  4. Step 4: Simplify right side
    102,340.80x = 8,052,320,380.84
  5. Step 5: Solve for x
    x = 8,052,320,380.84/102,340.80
  6. Step 6: Final answer
    x = 78,681.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.