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Finding the Fourth Proportional to 101,783.66, 140,478.28 and 56,476.22

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Solution

The fourth proportional to 101,783.66, 140,478.28 and 56,476.22 is: 77,946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,783.66 : 140,478.28 = 56,476.22 : x
  2. Step 2: Convert to fraction form
    101,783.66/140,478.28 = 56,476.22/x
  3. Step 3: Cross multiply
    101,783.66x = 140,478.28 × 56,476.22
  4. Step 4: Simplify right side
    101,783.66x = 7,933,682,246.50
  5. Step 5: Solve for x
    x = 7,933,682,246.50/101,783.66
  6. Step 6: Final answer
    x = 77,946.52

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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.