Home / 220,186.49-303,857.93-129,545.87

Finding the Fourth Proportional to 220,186.49, 303,857.93 and 129,545.87

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Solution

The fourth proportional to 220,186.49, 303,857.93 and 129,545.87 is: 178,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,186.49 : 303,857.93 = 129,545.87 : x
  2. Step 2: Convert to fraction form
    220,186.49/303,857.93 = 129,545.87/x
  3. Step 3: Cross multiply
    220,186.49x = 303,857.93 × 129,545.87
  4. Step 4: Simplify right side
    220,186.49x = 39,363,538,702.82
  5. Step 5: Solve for x
    x = 39,363,538,702.82/220,186.49
  6. Step 6: Final answer
    x = 178,773.64

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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.