Home / 102,485.44-141,370.70-61,621.18

Finding the Fourth Proportional to 102,485.44, 141,370.70 and 61,621.18

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Solution

The fourth proportional to 102,485.44, 141,370.70 and 61,621.18 is: 85,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,485.44 : 141,370.70 = 61,621.18 : x
  2. Step 2: Convert to fraction form
    102,485.44/141,370.70 = 61,621.18/x
  3. Step 3: Cross multiply
    102,485.44x = 141,370.70 × 61,621.18
  4. Step 4: Simplify right side
    102,485.44x = 8,711,428,689.89
  5. Step 5: Solve for x
    x = 8,711,428,689.89/102,485.44
  6. Step 6: Final answer
    x = 85,001.62

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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.