Home / 185,557.60-278,336.40-85,688.25

Finding the Fourth Proportional to 185,557.60, 278,336.40 and 85,688.25

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Solution

The fourth proportional to 185,557.60, 278,336.40 and 85,688.25 is: 128,532.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,557.60 : 278,336.40 = 85,688.25 : x
  2. Step 2: Convert to fraction form
    185,557.60/278,336.40 = 85,688.25/x
  3. Step 3: Cross multiply
    185,557.60x = 278,336.40 × 85,688.25
  4. Step 4: Simplify right side
    185,557.60x = 23,850,159,027.30
  5. Step 5: Solve for x
    x = 23,850,159,027.30/185,557.60
  6. Step 6: Final answer
    x = 128,532.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.