Home / 118,083.45-162,862.99-81,798.59

Finding the Fourth Proportional to 118,083.45, 162,862.99 and 81,798.59

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Solution

The fourth proportional to 118,083.45, 162,862.99 and 81,798.59 is: 112,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,083.45 : 162,862.99 = 81,798.59 : x
  2. Step 2: Convert to fraction form
    118,083.45/162,862.99 = 81,798.59/x
  3. Step 3: Cross multiply
    118,083.45x = 162,862.99 × 81,798.59
  4. Step 4: Simplify right side
    118,083.45x = 13,321,963,607.96
  5. Step 5: Solve for x
    x = 13,321,963,607.96/118,083.45
  6. Step 6: Final answer
    x = 112,818.21

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1.5x scale

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.