Home / 125,615.10-188,365.05-55,458.30

Finding the Fourth Proportional to 125,615.10, 188,365.05 and 55,458.30

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Solution

The fourth proportional to 125,615.10, 188,365.05 and 55,458.30 is: 83,162.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,615.10 : 188,365.05 = 55,458.30 : x
  2. Step 2: Convert to fraction form
    125,615.10/188,365.05 = 55,458.30/x
  3. Step 3: Cross multiply
    125,615.10x = 188,365.05 × 55,458.30
  4. Step 4: Simplify right side
    125,615.10x = 10,446,405,452.42
  5. Step 5: Solve for x
    x = 10,446,405,452.42/125,615.10
  6. Step 6: Final answer
    x = 83,162.02

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1.5x scale

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.