Home / 99,707.40-149,648.58-55,384.20

Finding the Fourth Proportional to 99,707.40, 149,648.58 and 55,384.20

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Solution

The fourth proportional to 99,707.40, 149,648.58 and 55,384.20 is: 83,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,707.40 : 149,648.58 = 55,384.20 : x
  2. Step 2: Convert to fraction form
    99,707.40/149,648.58 = 55,384.20/x
  3. Step 3: Cross multiply
    99,707.40x = 149,648.58 × 55,384.20
  4. Step 4: Simplify right side
    99,707.40x = 8,288,166,884.44
  5. Step 5: Solve for x
    x = 8,288,166,884.44/99,707.40
  6. Step 6: Final answer
    x = 83,124.89

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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.