Home / 98,811.52-148,221.39-28,690.84

Finding the Fourth Proportional to 98,811.52, 148,221.39 and 28,690.84

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Solution

The fourth proportional to 98,811.52, 148,221.39 and 28,690.84 is: 43,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,811.52 : 148,221.39 = 28,690.84 : x
  2. Step 2: Convert to fraction form
    98,811.52/148,221.39 = 28,690.84/x
  3. Step 3: Cross multiply
    98,811.52x = 148,221.39 × 28,690.84
  4. Step 4: Simplify right side
    98,811.52x = 4,252,596,041.61
  5. Step 5: Solve for x
    x = 4,252,596,041.61/98,811.52
  6. Step 6: Final answer
    x = 43,037.45

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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.