Home / 142,177.32-213,268.14-47,405.88

Finding the Fourth Proportional to 142,177.32, 213,268.14 and 47,405.88

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Solution

The fourth proportional to 142,177.32, 213,268.14 and 47,405.88 is: 71,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,177.32 : 213,268.14 = 47,405.88 : x
  2. Step 2: Convert to fraction form
    142,177.32/213,268.14 = 47,405.88/x
  3. Step 3: Cross multiply
    142,177.32x = 213,268.14 × 47,405.88
  4. Step 4: Simplify right side
    142,177.32x = 10,110,163,852.66
  5. Step 5: Solve for x
    x = 10,110,163,852.66/142,177.32
  6. Step 6: Final answer
    x = 71,109.54

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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.