Home / 106,678.45-147,220.49-61,356.38

Finding the Fourth Proportional to 106,678.45, 147,220.49 and 61,356.38

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Solution

The fourth proportional to 106,678.45, 147,220.49 and 61,356.38 is: 84,674.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,678.45 : 147,220.49 = 61,356.38 : x
  2. Step 2: Convert to fraction form
    106,678.45/147,220.49 = 61,356.38/x
  3. Step 3: Cross multiply
    106,678.45x = 147,220.49 × 61,356.38
  4. Step 4: Simplify right side
    106,678.45x = 9,032,915,814.44
  5. Step 5: Solve for x
    x = 9,032,915,814.44/106,678.45
  6. Step 6: Final answer
    x = 84,674.23

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Half scale
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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.