Home / 156,106.54-215,460.75-98,709.22

Finding the Fourth Proportional to 156,106.54, 215,460.75 and 98,709.22

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Solution

The fourth proportional to 156,106.54, 215,460.75 and 98,709.22 is: 136,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,106.54 : 215,460.75 = 98,709.22 : x
  2. Step 2: Convert to fraction form
    156,106.54/215,460.75 = 98,709.22/x
  3. Step 3: Cross multiply
    156,106.54x = 215,460.75 × 98,709.22
  4. Step 4: Simplify right side
    156,106.54x = 21,267,962,573.12
  5. Step 5: Solve for x
    x = 21,267,962,573.12/156,106.54
  6. Step 6: Final answer
    x = 136,240.05

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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.