Home / 141,312.77-195,013.16-77,650.56

Finding the Fourth Proportional to 141,312.77, 195,013.16 and 77,650.56

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Solution

The fourth proportional to 141,312.77, 195,013.16 and 77,650.56 is: 107,158.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,312.77 : 195,013.16 = 77,650.56 : x
  2. Step 2: Convert to fraction form
    141,312.77/195,013.16 = 77,650.56/x
  3. Step 3: Cross multiply
    141,312.77x = 195,013.16 × 77,650.56
  4. Step 4: Simplify right side
    141,312.77x = 15,142,880,984.31
  5. Step 5: Solve for x
    x = 15,142,880,984.31/141,312.77
  6. Step 6: Final answer
    x = 107,158.62

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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.