Home / 118,181.35-163,126.65-72,873.55

Finding the Fourth Proportional to 118,181.35, 163,126.65 and 72,873.55

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Solution

The fourth proportional to 118,181.35, 163,126.65 and 72,873.55 is: 100,587.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,181.35 : 163,126.65 = 72,873.55 : x
  2. Step 2: Convert to fraction form
    118,181.35/163,126.65 = 72,873.55/x
  3. Step 3: Cross multiply
    118,181.35x = 163,126.65 × 72,873.55
  4. Step 4: Simplify right side
    118,181.35x = 11,887,618,085.11
  5. Step 5: Solve for x
    x = 11,887,618,085.11/118,181.35
  6. Step 6: Final answer
    x = 100,587.94

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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.