Home / 103,999.26-143,519.01-58,686.87

Finding the Fourth Proportional to 103,999.26, 143,519.01 and 58,686.87

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Solution

The fourth proportional to 103,999.26, 143,519.01 and 58,686.87 is: 80,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,999.26 : 143,519.01 = 58,686.87 : x
  2. Step 2: Convert to fraction form
    103,999.26/143,519.01 = 58,686.87/x
  3. Step 3: Cross multiply
    103,999.26x = 143,519.01 × 58,686.87
  4. Step 4: Simplify right side
    103,999.26x = 8,422,681,482.40
  5. Step 5: Solve for x
    x = 8,422,681,482.40/103,999.26
  6. Step 6: Final answer
    x = 80,987.90

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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.