Home / 203,037.03-280,186.70-111,156.10

Finding the Fourth Proportional to 203,037.03, 280,186.70 and 111,156.10

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Solution

The fourth proportional to 203,037.03, 280,186.70 and 111,156.10 is: 153,393.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,037.03 : 280,186.70 = 111,156.10 : x
  2. Step 2: Convert to fraction form
    203,037.03/280,186.70 = 111,156.10/x
  3. Step 3: Cross multiply
    203,037.03x = 280,186.70 × 111,156.10
  4. Step 4: Simplify right side
    203,037.03x = 31,144,459,587.62
  5. Step 5: Solve for x
    x = 31,144,459,587.62/203,037.03
  6. Step 6: Final answer
    x = 153,393.00

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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.