Home / 118,390.17-163,317.75-80,151.09

Finding the Fourth Proportional to 118,390.17, 163,317.75 and 80,151.09

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Solution

The fourth proportional to 118,390.17, 163,317.75 and 80,151.09 is: 110,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,390.17 : 163,317.75 = 80,151.09 : x
  2. Step 2: Convert to fraction form
    118,390.17/163,317.75 = 80,151.09/x
  3. Step 3: Cross multiply
    118,390.17x = 163,317.75 × 80,151.09
  4. Step 4: Simplify right side
    118,390.17x = 13,090,095,678.85
  5. Step 5: Solve for x
    x = 13,090,095,678.85/118,390.17
  6. Step 6: Final answer
    x = 110,567.42

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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.