Home / 142,294.41-196,360.80-81,884.45

Finding the Fourth Proportional to 142,294.41, 196,360.80 and 81,884.45

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Solution

The fourth proportional to 142,294.41, 196,360.80 and 81,884.45 is: 112,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,294.41 : 196,360.80 = 81,884.45 : x
  2. Step 2: Convert to fraction form
    142,294.41/196,360.80 = 81,884.45/x
  3. Step 3: Cross multiply
    142,294.41x = 196,360.80 × 81,884.45
  4. Step 4: Simplify right side
    142,294.41x = 16,078,895,127.76
  5. Step 5: Solve for x
    x = 16,078,895,127.76/142,294.41
  6. Step 6: Final answer
    x = 112,997.38

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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.