Home / 112,666.14-155,477.94-61,678.26

Finding the Fourth Proportional to 112,666.14, 155,477.94 and 61,678.26

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Solution

The fourth proportional to 112,666.14, 155,477.94 and 61,678.26 is: 85,115.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,666.14 : 155,477.94 = 61,678.26 : x
  2. Step 2: Convert to fraction form
    112,666.14/155,477.94 = 61,678.26/x
  3. Step 3: Cross multiply
    112,666.14x = 155,477.94 × 61,678.26
  4. Step 4: Simplify right side
    112,666.14x = 9,589,608,807.58
  5. Step 5: Solve for x
    x = 9,589,608,807.58/112,666.14
  6. Step 6: Final answer
    x = 85,115.27

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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.