Home / 130,123.40-195,476.70-124,809.80

Finding the Fourth Proportional to 130,123.40, 195,476.70 and 124,809.80

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Solution

The fourth proportional to 130,123.40, 195,476.70 and 124,809.80 is: 187,494.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,123.40 : 195,476.70 = 124,809.80 : x
  2. Step 2: Convert to fraction form
    130,123.40/195,476.70 = 124,809.80/x
  3. Step 3: Cross multiply
    130,123.40x = 195,476.70 × 124,809.80
  4. Step 4: Simplify right side
    130,123.40x = 24,397,407,831.66
  5. Step 5: Solve for x
    x = 24,397,407,831.66/130,123.40
  6. Step 6: Final answer
    x = 187,494.39

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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.