Home / 125,056.51-172,561.89-71,338.31

Finding the Fourth Proportional to 125,056.51, 172,561.89 and 71,338.31

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Solution

The fourth proportional to 125,056.51, 172,561.89 and 71,338.31 is: 98,437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,056.51 : 172,561.89 = 71,338.31 : x
  2. Step 2: Convert to fraction form
    125,056.51/172,561.89 = 71,338.31/x
  3. Step 3: Cross multiply
    125,056.51x = 172,561.89 × 71,338.31
  4. Step 4: Simplify right side
    125,056.51x = 12,310,273,603.01
  5. Step 5: Solve for x
    x = 12,310,273,603.01/125,056.51
  6. Step 6: Final answer
    x = 98,437.69

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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.