Home / 103,877.87-143,351.51-56,131.22

Finding the Fourth Proportional to 103,877.87, 143,351.51 and 56,131.22

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Solution

The fourth proportional to 103,877.87, 143,351.51 and 56,131.22 is: 77,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,877.87 : 143,351.51 = 56,131.22 : x
  2. Step 2: Convert to fraction form
    103,877.87/143,351.51 = 56,131.22/x
  3. Step 3: Cross multiply
    103,877.87x = 143,351.51 × 56,131.22
  4. Step 4: Simplify right side
    103,877.87x = 8,046,495,222.86
  5. Step 5: Solve for x
    x = 8,046,495,222.86/103,877.87
  6. Step 6: Final answer
    x = 77,461.11

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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.