Home / 110,868.90-166,303.35-31,985.70

Finding the Fourth Proportional to 110,868.90, 166,303.35 and 31,985.70

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Solution

The fourth proportional to 110,868.90, 166,303.35 and 31,985.70 is: 47,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,868.90 : 166,303.35 = 31,985.70 : x
  2. Step 2: Convert to fraction form
    110,868.90/166,303.35 = 31,985.70/x
  3. Step 3: Cross multiply
    110,868.90x = 166,303.35 × 31,985.70
  4. Step 4: Simplify right side
    110,868.90x = 5,319,329,062.10
  5. Step 5: Solve for x
    x = 5,319,329,062.10/110,868.90
  6. Step 6: Final answer
    x = 47,978.55

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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.