Home / 124,795.40-172,359.71-83,888.50

Finding the Fourth Proportional to 124,795.40, 172,359.71 and 83,888.50

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Solution

The fourth proportional to 124,795.40, 172,359.71 and 83,888.50 is: 115,861.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,795.40 : 172,359.71 = 83,888.50 : x
  2. Step 2: Convert to fraction form
    124,795.40/172,359.71 = 83,888.50/x
  3. Step 3: Cross multiply
    124,795.40x = 172,359.71 × 83,888.50
  4. Step 4: Simplify right side
    124,795.40x = 14,458,997,101.44
  5. Step 5: Solve for x
    x = 14,458,997,101.44/124,795.40
  6. Step 6: Final answer
    x = 115,861.62

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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.