Home / 141,530.87-195,314.15-77,000.48

Finding the Fourth Proportional to 141,530.87, 195,314.15 and 77,000.48

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Solution

The fourth proportional to 141,530.87, 195,314.15 and 77,000.48 is: 106,261.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,530.87 : 195,314.15 = 77,000.48 : x
  2. Step 2: Convert to fraction form
    141,530.87/195,314.15 = 77,000.48/x
  3. Step 3: Cross multiply
    141,530.87x = 195,314.15 × 77,000.48
  4. Step 4: Simplify right side
    141,530.87x = 15,039,283,005.01
  5. Step 5: Solve for x
    x = 15,039,283,005.01/141,530.87
  6. Step 6: Final answer
    x = 106,261.50

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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.