Home / 99,840.28-149,686.44-47,188.24

Finding the Fourth Proportional to 99,840.28, 149,686.44 and 47,188.24

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Solution

The fourth proportional to 99,840.28, 149,686.44 and 47,188.24 is: 70,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,840.28 : 149,686.44 = 47,188.24 : x
  2. Step 2: Convert to fraction form
    99,840.28/149,686.44 = 47,188.24/x
  3. Step 3: Cross multiply
    99,840.28x = 149,686.44 × 47,188.24
  4. Step 4: Simplify right side
    99,840.28x = 7,063,439,655.47
  5. Step 5: Solve for x
    x = 7,063,439,655.47/99,840.28
  6. Step 6: Final answer
    x = 70,747.39

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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.