Home / 105,102.20-157,799.10-65,736.20

Finding the Fourth Proportional to 105,102.20, 157,799.10 and 65,736.20

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Solution

The fourth proportional to 105,102.20, 157,799.10 and 65,736.20 is: 98,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,102.20 : 157,799.10 = 65,736.20 : x
  2. Step 2: Convert to fraction form
    105,102.20/157,799.10 = 65,736.20/x
  3. Step 3: Cross multiply
    105,102.20x = 157,799.10 × 65,736.20
  4. Step 4: Simplify right side
    105,102.20x = 10,373,113,197.42
  5. Step 5: Solve for x
    x = 10,373,113,197.42/105,102.20
  6. Step 6: Final answer
    x = 98,695.49

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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.