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Finding the Fourth Proportional to 101,816.40, 140,504.46 and 56,493.39

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Solution

The fourth proportional to 101,816.40, 140,504.46 and 56,493.39 is: 77,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,816.40 : 140,504.46 = 56,493.39 : x
  2. Step 2: Convert to fraction form
    101,816.40/140,504.46 = 56,493.39/x
  3. Step 3: Cross multiply
    101,816.40x = 140,504.46 × 56,493.39
  4. Step 4: Simplify right side
    101,816.40x = 7,937,573,255.52
  5. Step 5: Solve for x
    x = 7,937,573,255.52/101,816.40
  6. Step 6: Final answer
    x = 77,959.67

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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.