Home / 101,478.26-140,036.55-56,158.15

Finding the Fourth Proportional to 101,478.26, 140,036.55 and 56,158.15

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Solution

The fourth proportional to 101,478.26, 140,036.55 and 56,158.15 is: 77,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,478.26 : 140,036.55 = 56,158.15 : x
  2. Step 2: Convert to fraction form
    101,478.26/140,036.55 = 56,158.15/x
  3. Step 3: Cross multiply
    101,478.26x = 140,036.55 × 56,158.15
  4. Step 4: Simplify right side
    101,478.26x = 7,864,193,395.73
  5. Step 5: Solve for x
    x = 7,864,193,395.73/101,478.26
  6. Step 6: Final answer
    x = 77,496.34

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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.