Home / 106,955.15-147,551.78-64,490.09

Finding the Fourth Proportional to 106,955.15, 147,551.78 and 64,490.09

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Solution

The fourth proportional to 106,955.15, 147,551.78 and 64,490.09 is: 88,968.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,955.15 : 147,551.78 = 64,490.09 : x
  2. Step 2: Convert to fraction form
    106,955.15/147,551.78 = 64,490.09/x
  3. Step 3: Cross multiply
    106,955.15x = 147,551.78 × 64,490.09
  4. Step 4: Simplify right side
    106,955.15x = 9,515,627,249.41
  5. Step 5: Solve for x
    x = 9,515,627,249.41/106,955.15
  6. Step 6: Final answer
    x = 88,968.39

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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.