Home / 231,831.40-347,747.10-74,075.80

Finding the Fourth Proportional to 231,831.40, 347,747.10 and 74,075.80

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Solution

The fourth proportional to 231,831.40, 347,747.10 and 74,075.80 is: 111,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,831.40 : 347,747.10 = 74,075.80 : x
  2. Step 2: Convert to fraction form
    231,831.40/347,747.10 = 74,075.80/x
  3. Step 3: Cross multiply
    231,831.40x = 347,747.10 × 74,075.80
  4. Step 4: Simplify right side
    231,831.40x = 25,759,644,630.18
  5. Step 5: Solve for x
    x = 25,759,644,630.18/231,831.40
  6. Step 6: Final answer
    x = 111,113.70

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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.