Home / 163,558.20-245,078.10-121,567.80

Finding the Fourth Proportional to 163,558.20, 245,078.10 and 121,567.80

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Solution

The fourth proportional to 163,558.20, 245,078.10 and 121,567.80 is: 182,159.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,558.20 : 245,078.10 = 121,567.80 : x
  2. Step 2: Convert to fraction form
    163,558.20/245,078.10 = 121,567.80/x
  3. Step 3: Cross multiply
    163,558.20x = 245,078.10 × 121,567.80
  4. Step 4: Simplify right side
    163,558.20x = 29,793,605,445.18
  5. Step 5: Solve for x
    x = 29,793,605,445.18/163,558.20
  6. Step 6: Final answer
    x = 182,159.04

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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.