Home / 156,090.24-215,316.83-98,711.87

Finding the Fourth Proportional to 156,090.24, 215,316.83 and 98,711.87

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Solution

The fourth proportional to 156,090.24, 215,316.83 and 98,711.87 is: 136,166.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,090.24 : 215,316.83 = 98,711.87 : x
  2. Step 2: Convert to fraction form
    156,090.24/215,316.83 = 98,711.87/x
  3. Step 3: Cross multiply
    156,090.24x = 215,316.83 × 98,711.87
  4. Step 4: Simplify right side
    156,090.24x = 21,254,326,101.97
  5. Step 5: Solve for x
    x = 21,254,326,101.97/156,090.24
  6. Step 6: Final answer
    x = 136,166.91

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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.