Home / 106,899.84-147,424.32-91,787.76

Finding the Fourth Proportional to 106,899.84, 147,424.32 and 91,787.76

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Solution

The fourth proportional to 106,899.84, 147,424.32 and 91,787.76 is: 126,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,899.84 : 147,424.32 = 91,787.76 : x
  2. Step 2: Convert to fraction form
    106,899.84/147,424.32 = 91,787.76/x
  3. Step 3: Cross multiply
    106,899.84x = 147,424.32 × 91,787.76
  4. Step 4: Simplify right side
    106,899.84x = 13,531,748,102.32
  5. Step 5: Solve for x
    x = 13,531,748,102.32/106,899.84
  6. Step 6: Final answer
    x = 126,583.43

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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.