Home / 103,988.04-143,503.14-56,241.36

Finding the Fourth Proportional to 103,988.04, 143,503.14 and 56,241.36

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Solution

The fourth proportional to 103,988.04, 143,503.14 and 56,241.36 is: 77,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,988.04 : 143,503.14 = 56,241.36 : x
  2. Step 2: Convert to fraction form
    103,988.04/143,503.14 = 56,241.36/x
  3. Step 3: Cross multiply
    103,988.04x = 143,503.14 × 56,241.36
  4. Step 4: Simplify right side
    103,988.04x = 8,070,811,757.87
  5. Step 5: Solve for x
    x = 8,070,811,757.87/103,988.04
  6. Step 6: Final answer
    x = 77,612.88

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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.