Home / 203,333.04-280,459.12-139,560.12

Finding the Fourth Proportional to 203,333.04, 280,459.12 and 139,560.12

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Solution

The fourth proportional to 203,333.04, 280,459.12 and 139,560.12 is: 192,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,333.04 : 280,459.12 = 139,560.12 : x
  2. Step 2: Convert to fraction form
    203,333.04/280,459.12 = 139,560.12/x
  3. Step 3: Cross multiply
    203,333.04x = 280,459.12 × 139,560.12
  4. Step 4: Simplify right side
    203,333.04x = 39,140,908,442.29
  5. Step 5: Solve for x
    x = 39,140,908,442.29/203,333.04
  6. Step 6: Final answer
    x = 192,496.55

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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.