Home / 117,237.52-161,656.95-84,908.20

Finding the Fourth Proportional to 117,237.52, 161,656.95 and 84,908.20

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Solution

The fourth proportional to 117,237.52, 161,656.95 and 84,908.20 is: 117,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,237.52 : 161,656.95 = 84,908.20 : x
  2. Step 2: Convert to fraction form
    117,237.52/161,656.95 = 84,908.20/x
  3. Step 3: Cross multiply
    117,237.52x = 161,656.95 × 84,908.20
  4. Step 4: Simplify right side
    117,237.52x = 13,726,000,641.99
  5. Step 5: Solve for x
    x = 13,726,000,641.99/117,237.52
  6. Step 6: Final answer
    x = 117,078.57

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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.