Home / 172,376.10-258,564.15-83,802.60

Finding the Fourth Proportional to 172,376.10, 258,564.15 and 83,802.60

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Solution

The fourth proportional to 172,376.10, 258,564.15 and 83,802.60 is: 125,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,376.10 : 258,564.15 = 83,802.60 : x
  2. Step 2: Convert to fraction form
    172,376.10/258,564.15 = 83,802.60/x
  3. Step 3: Cross multiply
    172,376.10x = 258,564.15 × 83,802.60
  4. Step 4: Simplify right side
    172,376.10x = 21,668,348,036.79
  5. Step 5: Solve for x
    x = 21,668,348,036.79/172,376.10
  6. Step 6: Final answer
    x = 125,703.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.