Home / 164,763.60-247,145.40-76,190.10

Finding the Fourth Proportional to 164,763.60, 247,145.40 and 76,190.10

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Solution

The fourth proportional to 164,763.60, 247,145.40 and 76,190.10 is: 114,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,763.60 : 247,145.40 = 76,190.10 : x
  2. Step 2: Convert to fraction form
    164,763.60/247,145.40 = 76,190.10/x
  3. Step 3: Cross multiply
    164,763.60x = 247,145.40 × 76,190.10
  4. Step 4: Simplify right side
    164,763.60x = 18,830,032,740.54
  5. Step 5: Solve for x
    x = 18,830,032,740.54/164,763.60
  6. Step 6: Final answer
    x = 114,285.15

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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.