Home / 280,110.60-420,165.90-93,122.10

Finding the Fourth Proportional to 280,110.60, 420,165.90 and 93,122.10

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Solution

The fourth proportional to 280,110.60, 420,165.90 and 93,122.10 is: 139,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,110.60 : 420,165.90 = 93,122.10 : x
  2. Step 2: Convert to fraction form
    280,110.60/420,165.90 = 93,122.10/x
  3. Step 3: Cross multiply
    280,110.60x = 420,165.90 × 93,122.10
  4. Step 4: Simplify right side
    280,110.60x = 39,126,730,956.39
  5. Step 5: Solve for x
    x = 39,126,730,956.39/280,110.60
  6. Step 6: Final answer
    x = 139,683.15

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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.