Home / 103,708.08-143,105.40-58,382.64

Finding the Fourth Proportional to 103,708.08, 143,105.40 and 58,382.64

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Solution

The fourth proportional to 103,708.08, 143,105.40 and 58,382.64 is: 80,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,708.08 : 143,105.40 = 58,382.64 : x
  2. Step 2: Convert to fraction form
    103,708.08/143,105.40 = 58,382.64/x
  3. Step 3: Cross multiply
    103,708.08x = 143,105.40 × 58,382.64
  4. Step 4: Simplify right side
    103,708.08x = 8,354,871,050.26
  5. Step 5: Solve for x
    x = 8,354,871,050.26/103,708.08
  6. Step 6: Final answer
    x = 80,561.43

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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.