Home / 156,161.02-215,503.93-84,542.58

Finding the Fourth Proportional to 156,161.02, 215,503.93 and 84,542.58

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Solution

The fourth proportional to 156,161.02, 215,503.93 and 84,542.58 is: 116,669.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,161.02 : 215,503.93 = 84,542.58 : x
  2. Step 2: Convert to fraction form
    156,161.02/215,503.93 = 84,542.58/x
  3. Step 3: Cross multiply
    156,161.02x = 215,503.93 × 84,542.58
  4. Step 4: Simplify right side
    156,161.02x = 18,219,257,164.82
  5. Step 5: Solve for x
    x = 18,219,257,164.82/156,161.02
  6. Step 6: Final answer
    x = 116,669.69

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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.