Home / 203,289.19-280,543.15-118,411.72

Finding the Fourth Proportional to 203,289.19, 280,543.15 and 118,411.72

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Solution

The fourth proportional to 203,289.19, 280,543.15 and 118,411.72 is: 163,410.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,289.19 : 280,543.15 = 118,411.72 : x
  2. Step 2: Convert to fraction form
    203,289.19/280,543.15 = 118,411.72/x
  3. Step 3: Cross multiply
    203,289.19x = 280,543.15 × 118,411.72
  4. Step 4: Simplify right side
    203,289.19x = 33,219,597,331.05
  5. Step 5: Solve for x
    x = 33,219,597,331.05/203,289.19
  6. Step 6: Final answer
    x = 163,410.54

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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.