Home / 125,326.89-172,992.47-112,040.87

Finding the Fourth Proportional to 125,326.89, 172,992.47 and 112,040.87

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Solution

The fourth proportional to 125,326.89, 172,992.47 and 112,040.87 is: 154,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,326.89 : 172,992.47 = 112,040.87 : x
  2. Step 2: Convert to fraction form
    125,326.89/172,992.47 = 112,040.87/x
  3. Step 3: Cross multiply
    125,326.89x = 172,992.47 × 112,040.87
  4. Step 4: Simplify right side
    125,326.89x = 19,382,225,417.08
  5. Step 5: Solve for x
    x = 19,382,225,417.08/125,326.89
  6. Step 6: Final answer
    x = 154,653.37

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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.