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Finding the Fourth Proportional to 163,602, 245,460.60 and 80,554.32

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Solution

The fourth proportional to 163,602, 245,460.60 and 80,554.32 is: 120,859.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,602 : 245,460.60 = 80,554.32 : x
  2. Step 2: Convert to fraction form
    163,602/245,460.60 = 80,554.32/x
  3. Step 3: Cross multiply
    163,602x = 245,460.60 × 80,554.32
  4. Step 4: Simplify right side
    163,602x = 19,772,911,719.79
  5. Step 5: Solve for x
    x = 19,772,911,719.79/163,602
  6. Step 6: Final answer
    x = 120,859.84

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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.