Home / 118,001.60-177,002.40-71,345.60

Finding the Fourth Proportional to 118,001.60, 177,002.40 and 71,345.60

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Solution

The fourth proportional to 118,001.60, 177,002.40 and 71,345.60 is: 107,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,001.60 : 177,002.40 = 71,345.60 : x
  2. Step 2: Convert to fraction form
    118,001.60/177,002.40 = 71,345.60/x
  3. Step 3: Cross multiply
    118,001.60x = 177,002.40 × 71,345.60
  4. Step 4: Simplify right side
    118,001.60x = 12,628,342,429.44
  5. Step 5: Solve for x
    x = 12,628,342,429.44/118,001.60
  6. Step 6: Final answer
    x = 107,018.40

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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.