Home / 88,189.56-121,698.09-47,902.50

Finding the Fourth Proportional to 88,189.56, 121,698.09 and 47,902.50

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Solution

The fourth proportional to 88,189.56, 121,698.09 and 47,902.50 is: 66,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,189.56 : 121,698.09 = 47,902.50 : x
  2. Step 2: Convert to fraction form
    88,189.56/121,698.09 = 47,902.50/x
  3. Step 3: Cross multiply
    88,189.56x = 121,698.09 × 47,902.50
  4. Step 4: Simplify right side
    88,189.56x = 5,829,642,756.23
  5. Step 5: Solve for x
    x = 5,829,642,756.23/88,189.56
  6. Step 6: Final answer
    x = 66,103.55

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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.