Home / 103,449.08-155,241.66-56,734.76

Finding the Fourth Proportional to 103,449.08, 155,241.66 and 56,734.76

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Solution

The fourth proportional to 103,449.08, 155,241.66 and 56,734.76 is: 85,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,449.08 : 155,241.66 = 56,734.76 : x
  2. Step 2: Convert to fraction form
    103,449.08/155,241.66 = 56,734.76/x
  3. Step 3: Cross multiply
    103,449.08x = 155,241.66 × 56,734.76
  4. Step 4: Simplify right side
    103,449.08x = 8,807,598,322.10
  5. Step 5: Solve for x
    x = 8,807,598,322.10/103,449.08
  6. Step 6: Final answer
    x = 85,139.46

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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.