Home / 102,682.24-141,640.32-70,849.60

Finding the Fourth Proportional to 102,682.24, 141,640.32 and 70,849.60

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Solution

The fourth proportional to 102,682.24, 141,640.32 and 70,849.60 is: 97,730.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,682.24 : 141,640.32 = 70,849.60 : x
  2. Step 2: Convert to fraction form
    102,682.24/141,640.32 = 70,849.60/x
  3. Step 3: Cross multiply
    102,682.24x = 141,640.32 × 70,849.60
  4. Step 4: Simplify right side
    102,682.24x = 10,035,160,015.87
  5. Step 5: Solve for x
    x = 10,035,160,015.87/102,682.24
  6. Step 6: Final answer
    x = 97,730.24

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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.