Home / 116,388.60-160,612.02-71,142.36

Finding the Fourth Proportional to 116,388.60, 160,612.02 and 71,142.36

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Solution

The fourth proportional to 116,388.60, 160,612.02 and 71,142.36 is: 98,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,388.60 : 160,612.02 = 71,142.36 : x
  2. Step 2: Convert to fraction form
    116,388.60/160,612.02 = 71,142.36/x
  3. Step 3: Cross multiply
    116,388.60x = 160,612.02 × 71,142.36
  4. Step 4: Simplify right side
    116,388.60x = 11,426,318,147.17
  5. Step 5: Solve for x
    x = 11,426,318,147.17/116,388.60
  6. Step 6: Final answer
    x = 98,173.86

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1.5x scale

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.