Home / 120,583.68-166,416-70,281.60

Finding the Fourth Proportional to 120,583.68, 166,416 and 70,281.60

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Solution

The fourth proportional to 120,583.68, 166,416 and 70,281.60 is: 96,994.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,583.68 : 166,416 = 70,281.60 : x
  2. Step 2: Convert to fraction form
    120,583.68/166,416 = 70,281.60/x
  3. Step 3: Cross multiply
    120,583.68x = 166,416 × 70,281.60
  4. Step 4: Simplify right side
    120,583.68x = 11,695,982,745.60
  5. Step 5: Solve for x
    x = 11,695,982,745.60/120,583.68
  6. Step 6: Final answer
    x = 96,994.74

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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.