Home / 120,866.63-181,248.69-57,613.58

Finding the Fourth Proportional to 120,866.63, 181,248.69 and 57,613.58

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Solution

The fourth proportional to 120,866.63, 181,248.69 and 57,613.58 is: 86,395.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,866.63 : 181,248.69 = 57,613.58 : x
  2. Step 2: Convert to fraction form
    120,866.63/181,248.69 = 57,613.58/x
  3. Step 3: Cross multiply
    120,866.63x = 181,248.69 × 57,613.58
  4. Step 4: Simplify right side
    120,866.63x = 10,442,385,901.21
  5. Step 5: Solve for x
    x = 10,442,385,901.21/120,866.63
  6. Step 6: Final answer
    x = 86,395.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.