Home / 118,816.04-163,987.80-68,515.04

Finding the Fourth Proportional to 118,816.04, 163,987.80 and 68,515.04

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Solution

The fourth proportional to 118,816.04, 163,987.80 and 68,515.04 is: 94,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,816.04 : 163,987.80 = 68,515.04 : x
  2. Step 2: Convert to fraction form
    118,816.04/163,987.80 = 68,515.04/x
  3. Step 3: Cross multiply
    118,816.04x = 163,987.80 × 68,515.04
  4. Step 4: Simplify right side
    118,816.04x = 11,235,630,676.51
  5. Step 5: Solve for x
    x = 11,235,630,676.51/118,816.04
  6. Step 6: Final answer
    x = 94,563.25

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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.