Home / 104,131.71-143,701.56-56,385.20

Finding the Fourth Proportional to 104,131.71, 143,701.56 and 56,385.20

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Solution

The fourth proportional to 104,131.71, 143,701.56 and 56,385.20 is: 77,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,131.71 : 143,701.56 = 56,385.20 : x
  2. Step 2: Convert to fraction form
    104,131.71/143,701.56 = 56,385.20/x
  3. Step 3: Cross multiply
    104,131.71x = 143,701.56 × 56,385.20
  4. Step 4: Simplify right side
    104,131.71x = 8,102,641,200.91
  5. Step 5: Solve for x
    x = 8,102,641,200.91/104,131.71
  6. Step 6: Final answer
    x = 77,811.47

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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.