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Finding the Fourth Proportional to 98,777.88, 148,200.10 and 31,320.95

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Solution

The fourth proportional to 98,777.88, 148,200.10 and 31,320.95 is: 46,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,777.88 : 148,200.10 = 31,320.95 : x
  2. Step 2: Convert to fraction form
    98,777.88/148,200.10 = 31,320.95/x
  3. Step 3: Cross multiply
    98,777.88x = 148,200.10 × 31,320.95
  4. Step 4: Simplify right side
    98,777.88x = 4,641,767,102.79
  5. Step 5: Solve for x
    x = 4,641,767,102.79/98,777.88
  6. Step 6: Final answer
    x = 46,991.97

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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.