Home / 235,436.80-324,909.32-128,014.18

Finding the Fourth Proportional to 235,436.80, 324,909.32 and 128,014.18

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Solution

The fourth proportional to 235,436.80, 324,909.32 and 128,014.18 is: 176,663.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,436.80 : 324,909.32 = 128,014.18 : x
  2. Step 2: Convert to fraction form
    235,436.80/324,909.32 = 128,014.18/x
  3. Step 3: Cross multiply
    235,436.80x = 324,909.32 × 128,014.18
  4. Step 4: Simplify right side
    235,436.80x = 41,593,000,174.16
  5. Step 5: Solve for x
    x = 41,593,000,174.16/235,436.80
  6. Step 6: Final answer
    x = 176,663.12

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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.