Home / 101,489.19-140,055.34-56,170.29

Finding the Fourth Proportional to 101,489.19, 140,055.34 and 56,170.29

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Solution

The fourth proportional to 101,489.19, 140,055.34 and 56,170.29 is: 77,515.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,489.19 : 140,055.34 = 56,170.29 : x
  2. Step 2: Convert to fraction form
    101,489.19/140,055.34 = 56,170.29/x
  3. Step 3: Cross multiply
    101,489.19x = 140,055.34 × 56,170.29
  4. Step 4: Simplify right side
    101,489.19x = 7,866,949,063.85
  5. Step 5: Solve for x
    x = 7,866,949,063.85/101,489.19
  6. Step 6: Final answer
    x = 77,515.14

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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.