Home / 141,756.84-195,639.30-81,333

Finding the Fourth Proportional to 141,756.84, 195,639.30 and 81,333

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Solution

The fourth proportional to 141,756.84, 195,639.30 and 81,333 is: 112,248.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,756.84 : 195,639.30 = 81,333 : x
  2. Step 2: Convert to fraction form
    141,756.84/195,639.30 = 81,333/x
  3. Step 3: Cross multiply
    141,756.84x = 195,639.30 × 81,333
  4. Step 4: Simplify right side
    141,756.84x = 15,911,931,186.90
  5. Step 5: Solve for x
    x = 15,911,931,186.90/141,756.84
  6. Step 6: Final answer
    x = 112,248.07

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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.