Home / 103,940.76-143,438.27-56,194.10

Finding the Fourth Proportional to 103,940.76, 143,438.27 and 56,194.10

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Solution

The fourth proportional to 103,940.76, 143,438.27 and 56,194.10 is: 77,547.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,940.76 : 143,438.27 = 56,194.10 : x
  2. Step 2: Convert to fraction form
    103,940.76/143,438.27 = 56,194.10/x
  3. Step 3: Cross multiply
    103,940.76x = 143,438.27 × 56,194.10
  4. Step 4: Simplify right side
    103,940.76x = 8,060,384,027.94
  5. Step 5: Solve for x
    x = 8,060,384,027.94/103,940.76
  6. Step 6: Final answer
    x = 77,547.86

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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.