Home / 103,799.09-143,213.10-58,461.20

Finding the Fourth Proportional to 103,799.09, 143,213.10 and 58,461.20

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Solution

The fourth proportional to 103,799.09, 143,213.10 and 58,461.20 is: 80,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,799.09 : 143,213.10 = 58,461.20 : x
  2. Step 2: Convert to fraction form
    103,799.09/143,213.10 = 58,461.20/x
  3. Step 3: Cross multiply
    103,799.09x = 143,213.10 × 58,461.20
  4. Step 4: Simplify right side
    103,799.09x = 8,372,409,681.72
  5. Step 5: Solve for x
    x = 8,372,409,681.72/103,799.09
  6. Step 6: Final answer
    x = 80,659.76

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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.