Home / 99,210.25-148,831.80-45,955.45

Finding the Fourth Proportional to 99,210.25, 148,831.80 and 45,955.45

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Solution

The fourth proportional to 99,210.25, 148,831.80 and 45,955.45 is: 68,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,210.25 : 148,831.80 = 45,955.45 : x
  2. Step 2: Convert to fraction form
    99,210.25/148,831.80 = 45,955.45/x
  3. Step 3: Cross multiply
    99,210.25x = 148,831.80 × 45,955.45
  4. Step 4: Simplify right side
    99,210.25x = 6,839,632,357.02
  5. Step 5: Solve for x
    x = 6,839,632,357.02/99,210.25
  6. Step 6: Final answer
    x = 68,940.78

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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.