Home / 99,975.42-149,932.85-52,564.95

Finding the Fourth Proportional to 99,975.42, 149,932.85 and 52,564.95

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Solution

The fourth proportional to 99,975.42, 149,932.85 and 52,564.95 is: 78,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,975.42 : 149,932.85 = 52,564.95 : x
  2. Step 2: Convert to fraction form
    99,975.42/149,932.85 = 52,564.95/x
  3. Step 3: Cross multiply
    99,975.42x = 149,932.85 × 52,564.95
  4. Step 4: Simplify right side
    99,975.42x = 7,881,212,500.78
  5. Step 5: Solve for x
    x = 7,881,212,500.78/99,975.42
  6. Step 6: Final answer
    x = 78,831.50

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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.