Home / 105,080.86-157,560.69-71,841.21

Finding the Fourth Proportional to 105,080.86, 157,560.69 and 71,841.21

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Solution

The fourth proportional to 105,080.86, 157,560.69 and 71,841.21 is: 107,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,080.86 : 157,560.69 = 71,841.21 : x
  2. Step 2: Convert to fraction form
    105,080.86/157,560.69 = 71,841.21/x
  3. Step 3: Cross multiply
    105,080.86x = 157,560.69 × 71,841.21
  4. Step 4: Simplify right side
    105,080.86x = 11,319,350,618.03
  5. Step 5: Solve for x
    x = 11,319,350,618.03/105,080.86
  6. Step 6: Final answer
    x = 107,720.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.