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Finding the Fourth Proportional to 163,693.60, 245,281.20 and 104,423.20

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Solution

The fourth proportional to 163,693.60, 245,281.20 and 104,423.20 is: 156,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,693.60 : 245,281.20 = 104,423.20 : x
  2. Step 2: Convert to fraction form
    163,693.60/245,281.20 = 104,423.20/x
  3. Step 3: Cross multiply
    163,693.60x = 245,281.20 × 104,423.20
  4. Step 4: Simplify right side
    163,693.60x = 25,613,047,803.84
  5. Step 5: Solve for x
    x = 25,613,047,803.84/163,693.60
  6. Step 6: Final answer
    x = 156,469.45

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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.