Home / 156,506.58-215,975.16-87,595.02

Finding the Fourth Proportional to 156,506.58, 215,975.16 and 87,595.02

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Solution

The fourth proportional to 156,506.58, 215,975.16 and 87,595.02 is: 120,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,506.58 : 215,975.16 = 87,595.02 : x
  2. Step 2: Convert to fraction form
    156,506.58/215,975.16 = 87,595.02/x
  3. Step 3: Cross multiply
    156,506.58x = 215,975.16 × 87,595.02
  4. Step 4: Simplify right side
    156,506.58x = 18,918,348,459.70
  5. Step 5: Solve for x
    x = 18,918,348,459.70/156,506.58
  6. Step 6: Final answer
    x = 120,878.93

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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.