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Finding the Fourth Proportional to 103,745.60, 155,618.40 and 93,904.10

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Solution

The fourth proportional to 103,745.60, 155,618.40 and 93,904.10 is: 140,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,745.60 : 155,618.40 = 93,904.10 : x
  2. Step 2: Convert to fraction form
    103,745.60/155,618.40 = 93,904.10/x
  3. Step 3: Cross multiply
    103,745.60x = 155,618.40 × 93,904.10
  4. Step 4: Simplify right side
    103,745.60x = 14,613,205,795.44
  5. Step 5: Solve for x
    x = 14,613,205,795.44/103,745.60
  6. Step 6: Final answer
    x = 140,856.15

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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.