Home / 104,187.32-143,778.57-56,440.86

Finding the Fourth Proportional to 104,187.32, 143,778.57 and 56,440.86

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Solution

The fourth proportional to 104,187.32, 143,778.57 and 56,440.86 is: 77,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,187.32 : 143,778.57 = 56,440.86 : x
  2. Step 2: Convert to fraction form
    104,187.32/143,778.57 = 56,440.86/x
  3. Step 3: Cross multiply
    104,187.32x = 143,778.57 × 56,440.86
  4. Step 4: Simplify right side
    104,187.32x = 8,114,986,352.02
  5. Step 5: Solve for x
    x = 8,114,986,352.02/104,187.32
  6. Step 6: Final answer
    x = 77,888.42

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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.