Home / 141,574.32-195,372.45-77,912.12

Finding the Fourth Proportional to 141,574.32, 195,372.45 and 77,912.12

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Solution

The fourth proportional to 141,574.32, 195,372.45 and 77,912.12 is: 107,518.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,574.32 : 195,372.45 = 77,912.12 : x
  2. Step 2: Convert to fraction form
    141,574.32/195,372.45 = 77,912.12/x
  3. Step 3: Cross multiply
    141,574.32x = 195,372.45 × 77,912.12
  4. Step 4: Simplify right side
    141,574.32x = 15,221,880,792.23
  5. Step 5: Solve for x
    x = 15,221,880,792.23/141,574.32
  6. Step 6: Final answer
    x = 107,518.66

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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.