Home / 103,601.64-142,970.82-61,181.10

Finding the Fourth Proportional to 103,601.64, 142,970.82 and 61,181.10

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Solution

The fourth proportional to 103,601.64, 142,970.82 and 61,181.10 is: 84,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,601.64 : 142,970.82 = 61,181.10 : x
  2. Step 2: Convert to fraction form
    103,601.64/142,970.82 = 61,181.10/x
  3. Step 3: Cross multiply
    103,601.64x = 142,970.82 × 61,181.10
  4. Step 4: Simplify right side
    103,601.64x = 8,747,112,035.50
  5. Step 5: Solve for x
    x = 8,747,112,035.50/103,601.64
  6. Step 6: Final answer
    x = 84,430.25

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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.