Home / 109,002.48-163,590.60-74,185.20

Finding the Fourth Proportional to 109,002.48, 163,590.60 and 74,185.20

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Solution

The fourth proportional to 109,002.48, 163,590.60 and 74,185.20 is: 111,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,002.48 : 163,590.60 = 74,185.20 : x
  2. Step 2: Convert to fraction form
    109,002.48/163,590.60 = 74,185.20/x
  3. Step 3: Cross multiply
    109,002.48x = 163,590.60 × 74,185.20
  4. Step 4: Simplify right side
    109,002.48x = 12,136,001,379.12
  5. Step 5: Solve for x
    x = 12,136,001,379.12/109,002.48
  6. Step 6: Final answer
    x = 111,336.93

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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.