Home / 98,679.86-148,038.06-31,228.88

Finding the Fourth Proportional to 98,679.86, 148,038.06 and 31,228.88

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Solution

The fourth proportional to 98,679.86, 148,038.06 and 31,228.88 is: 46,849.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,679.86 : 148,038.06 = 31,228.88 : x
  2. Step 2: Convert to fraction form
    98,679.86/148,038.06 = 31,228.88/x
  3. Step 3: Cross multiply
    98,679.86x = 148,038.06 × 31,228.88
  4. Step 4: Simplify right side
    98,679.86x = 4,623,061,914.84
  5. Step 5: Solve for x
    x = 4,623,061,914.84/98,679.86
  6. Step 6: Final answer
    x = 46,849.09

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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.