Home / 125,317.80-172,922.58-71,606.31

Finding the Fourth Proportional to 125,317.80, 172,922.58 and 71,606.31

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Solution

The fourth proportional to 125,317.80, 172,922.58 and 71,606.31 is: 98,807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,317.80 : 172,922.58 = 71,606.31 : x
  2. Step 2: Convert to fraction form
    125,317.80/172,922.58 = 71,606.31/x
  3. Step 3: Cross multiply
    125,317.80x = 172,922.58 × 71,606.31
  4. Step 4: Simplify right side
    125,317.80x = 12,382,347,869.48
  5. Step 5: Solve for x
    x = 12,382,347,869.48/125,317.80
  6. Step 6: Final answer
    x = 98,807.57

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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.