Home / 103,727.86-143,145.03-59,015.86

Finding the Fourth Proportional to 103,727.86, 143,145.03 and 59,015.86

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Solution

The fourth proportional to 103,727.86, 143,145.03 and 59,015.86 is: 81,442.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,727.86 : 143,145.03 = 59,015.86 : x
  2. Step 2: Convert to fraction form
    103,727.86/143,145.03 = 59,015.86/x
  3. Step 3: Cross multiply
    103,727.86x = 143,145.03 × 59,015.86
  4. Step 4: Simplify right side
    103,727.86x = 8,447,827,050.18
  5. Step 5: Solve for x
    x = 8,447,827,050.18/103,727.86
  6. Step 6: Final answer
    x = 81,442.22

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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.