Home / 125,048.89-172,533.36-71,314.30

Finding the Fourth Proportional to 125,048.89, 172,533.36 and 71,314.30

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Solution

The fourth proportional to 125,048.89, 172,533.36 and 71,314.30 is: 98,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,048.89 : 172,533.36 = 71,314.30 : x
  2. Step 2: Convert to fraction form
    125,048.89/172,533.36 = 71,314.30/x
  3. Step 3: Cross multiply
    125,048.89x = 172,533.36 × 71,314.30
  4. Step 4: Simplify right side
    125,048.89x = 12,304,095,795.05
  5. Step 5: Solve for x
    x = 12,304,095,795.05/125,048.89
  6. Step 6: Final answer
    x = 98,394.28

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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.