Home / 142,072.20-196,085.06-84,715.22

Finding the Fourth Proportional to 142,072.20, 196,085.06 and 84,715.22

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Solution

The fourth proportional to 142,072.20, 196,085.06 and 84,715.22 is: 116,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,072.20 : 196,085.06 = 84,715.22 : x
  2. Step 2: Convert to fraction form
    142,072.20/196,085.06 = 84,715.22/x
  3. Step 3: Cross multiply
    142,072.20x = 196,085.06 × 84,715.22
  4. Step 4: Simplify right side
    142,072.20x = 16,611,387,592.61
  5. Step 5: Solve for x
    x = 16,611,387,592.61/142,072.20
  6. Step 6: Final answer
    x = 116,922.15

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1.5x scale

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.