Home / 101,176.12-139,623.25-55,854.16

Finding the Fourth Proportional to 101,176.12, 139,623.25 and 55,854.16

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Solution

The fourth proportional to 101,176.12, 139,623.25 and 55,854.16 is: 77,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,176.12 : 139,623.25 = 55,854.16 : x
  2. Step 2: Convert to fraction form
    101,176.12/139,623.25 = 55,854.16/x
  3. Step 3: Cross multiply
    101,176.12x = 139,623.25 × 55,854.16
  4. Step 4: Simplify right side
    101,176.12x = 7,798,539,345.22
  5. Step 5: Solve for x
    x = 7,798,539,345.22/101,176.12
  6. Step 6: Final answer
    x = 77,078.85

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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.