Home / 141,885.43-195,803.23-78,225.50

Finding the Fourth Proportional to 141,885.43, 195,803.23 and 78,225.50

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Solution

The fourth proportional to 141,885.43, 195,803.23 and 78,225.50 is: 107,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,885.43 : 195,803.23 = 78,225.50 : x
  2. Step 2: Convert to fraction form
    141,885.43/195,803.23 = 78,225.50/x
  3. Step 3: Cross multiply
    141,885.43x = 195,803.23 × 78,225.50
  4. Step 4: Simplify right side
    141,885.43x = 15,316,805,568.37
  5. Step 5: Solve for x
    x = 15,316,805,568.37/141,885.43
  6. Step 6: Final answer
    x = 107,951.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.