Home / 121,025.45-166,987.55-70,036.89

Finding the Fourth Proportional to 121,025.45, 166,987.55 and 70,036.89

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Solution

The fourth proportional to 121,025.45, 166,987.55 and 70,036.89 is: 96,634.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,025.45 : 166,987.55 = 70,036.89 : x
  2. Step 2: Convert to fraction form
    121,025.45/166,987.55 = 70,036.89/x
  3. Step 3: Cross multiply
    121,025.45x = 166,987.55 × 70,036.89
  4. Step 4: Simplify right side
    121,025.45x = 11,695,288,670.72
  5. Step 5: Solve for x
    x = 11,695,288,670.72/121,025.45
  6. Step 6: Final answer
    x = 96,634.95

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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.