Home / 101,480.26-140,039.31-56,160.15

Finding the Fourth Proportional to 101,480.26, 140,039.31 and 56,160.15

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Solution

The fourth proportional to 101,480.26, 140,039.31 and 56,160.15 is: 77,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,480.26 : 140,039.31 = 56,160.15 : x
  2. Step 2: Convert to fraction form
    101,480.26/140,039.31 = 56,160.15/x
  3. Step 3: Cross multiply
    101,480.26x = 140,039.31 × 56,160.15
  4. Step 4: Simplify right side
    101,480.26x = 7,864,628,655.50
  5. Step 5: Solve for x
    x = 7,864,628,655.50/101,480.26
  6. Step 6: Final answer
    x = 77,499.10

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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.