Home / 113,260.48-156,068.98-87,611.02

Finding the Fourth Proportional to 113,260.48, 156,068.98 and 87,611.02

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Solution

The fourth proportional to 113,260.48, 156,068.98 and 87,611.02 is: 120,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,260.48 : 156,068.98 = 87,611.02 : x
  2. Step 2: Convert to fraction form
    113,260.48/156,068.98 = 87,611.02/x
  3. Step 3: Cross multiply
    113,260.48x = 156,068.98 × 87,611.02
  4. Step 4: Simplify right side
    113,260.48x = 13,673,361,918.96
  5. Step 5: Solve for x
    x = 13,673,361,918.96/113,260.48
  6. Step 6: Final answer
    x = 120,724.92

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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.