Home / 163,880.20-245,528.70-138,802.60

Finding the Fourth Proportional to 163,880.20, 245,528.70 and 138,802.60

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Solution

The fourth proportional to 163,880.20, 245,528.70 and 138,802.60 is: 207,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,880.20 : 245,528.70 = 138,802.60 : x
  2. Step 2: Convert to fraction form
    163,880.20/245,528.70 = 138,802.60/x
  3. Step 3: Cross multiply
    163,880.20x = 245,528.70 × 138,802.60
  4. Step 4: Simplify right side
    163,880.20x = 34,080,021,934.62
  5. Step 5: Solve for x
    x = 34,080,021,934.62/163,880.20
  6. Step 6: Final answer
    x = 207,956.92

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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.