Home / 101,509.22-140,079.15-56,187.29

Finding the Fourth Proportional to 101,509.22, 140,079.15 and 56,187.29

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Solution

The fourth proportional to 101,509.22, 140,079.15 and 56,187.29 is: 77,536.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,509.22 : 140,079.15 = 56,187.29 : x
  2. Step 2: Convert to fraction form
    101,509.22/140,079.15 = 56,187.29/x
  3. Step 3: Cross multiply
    101,509.22x = 140,079.15 × 56,187.29
  4. Step 4: Simplify right side
    101,509.22x = 7,870,667,228.23
  5. Step 5: Solve for x
    x = 7,870,667,228.23/101,509.22
  6. Step 6: Final answer
    x = 77,536.48

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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.