Home / 102,447.24-141,378.93-56,512.15

Finding the Fourth Proportional to 102,447.24, 141,378.93 and 56,512.15

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Solution

The fourth proportional to 102,447.24, 141,378.93 and 56,512.15 is: 77,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,447.24 : 141,378.93 = 56,512.15 : x
  2. Step 2: Convert to fraction form
    102,447.24/141,378.93 = 56,512.15/x
  3. Step 3: Cross multiply
    102,447.24x = 141,378.93 × 56,512.15
  4. Step 4: Simplify right side
    102,447.24x = 7,989,627,299.00
  5. Step 5: Solve for x
    x = 7,989,627,299.00/102,447.24
  6. Step 6: Final answer
    x = 77,987.73

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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.