Home / 118,118.16-163,005.48-67,820.40

Finding the Fourth Proportional to 118,118.16, 163,005.48 and 67,820.40

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Solution

The fourth proportional to 118,118.16, 163,005.48 and 67,820.40 is: 93,593.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,118.16 : 163,005.48 = 67,820.40 : x
  2. Step 2: Convert to fraction form
    118,118.16/163,005.48 = 67,820.40/x
  3. Step 3: Cross multiply
    118,118.16x = 163,005.48 × 67,820.40
  4. Step 4: Simplify right side
    118,118.16x = 11,055,096,855.79
  5. Step 5: Solve for x
    x = 11,055,096,855.79/118,118.16
  6. Step 6: Final answer
    x = 93,593.54

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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.