Home / 125,054.51-172,559.13-71,336.31

Finding the Fourth Proportional to 125,054.51, 172,559.13 and 71,336.31

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Solution

The fourth proportional to 125,054.51, 172,559.13 and 71,336.31 is: 98,434.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,054.51 : 172,559.13 = 71,336.31 : x
  2. Step 2: Convert to fraction form
    125,054.51/172,559.13 = 71,336.31/x
  3. Step 3: Cross multiply
    125,054.51x = 172,559.13 × 71,336.31
  4. Step 4: Simplify right side
    125,054.51x = 12,309,731,591.01
  5. Step 5: Solve for x
    x = 12,309,731,591.01/125,054.51
  6. Step 6: Final answer
    x = 98,434.93

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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.