Home / 103,988.10-143,504.13-56,241.30

Finding the Fourth Proportional to 103,988.10, 143,504.13 and 56,241.30

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Solution

The fourth proportional to 103,988.10, 143,504.13 and 56,241.30 is: 77,613.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,988.10 : 143,504.13 = 56,241.30 : x
  2. Step 2: Convert to fraction form
    103,988.10/143,504.13 = 56,241.30/x
  3. Step 3: Cross multiply
    103,988.10x = 143,504.13 × 56,241.30
  4. Step 4: Simplify right side
    103,988.10x = 8,070,858,826.57
  5. Step 5: Solve for x
    x = 8,070,858,826.57/103,988.10
  6. Step 6: Final answer
    x = 77,613.29

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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.