Home / 110,868.40-166,302.60-31,985.20

Finding the Fourth Proportional to 110,868.40, 166,302.60 and 31,985.20

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Solution

The fourth proportional to 110,868.40, 166,302.60 and 31,985.20 is: 47,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,868.40 : 166,302.60 = 31,985.20 : x
  2. Step 2: Convert to fraction form
    110,868.40/166,302.60 = 31,985.20/x
  3. Step 3: Cross multiply
    110,868.40x = 166,302.60 × 31,985.20
  4. Step 4: Simplify right side
    110,868.40x = 5,319,221,921.52
  5. Step 5: Solve for x
    x = 5,319,221,921.52/110,868.40
  6. Step 6: Final answer
    x = 47,977.80

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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.