Home / 163,979.20-245,968.80-161,646.40

Finding the Fourth Proportional to 163,979.20, 245,968.80 and 161,646.40

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Solution

The fourth proportional to 163,979.20, 245,968.80 and 161,646.40 is: 242,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,979.20 : 245,968.80 = 161,646.40 : x
  2. Step 2: Convert to fraction form
    163,979.20/245,968.80 = 161,646.40/x
  3. Step 3: Cross multiply
    163,979.20x = 245,968.80 × 161,646.40
  4. Step 4: Simplify right side
    163,979.20x = 39,759,971,032.32
  5. Step 5: Solve for x
    x = 39,759,971,032.32/163,979.20
  6. Step 6: Final answer
    x = 242,469.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.