Home / 164,749.20-247,415.40-127,400.10

Finding the Fourth Proportional to 164,749.20, 247,415.40 and 127,400.10

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Solution

The fourth proportional to 164,749.20, 247,415.40 and 127,400.10 is: 191,325.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,749.20 : 247,415.40 = 127,400.10 : x
  2. Step 2: Convert to fraction form
    164,749.20/247,415.40 = 127,400.10/x
  3. Step 3: Cross multiply
    164,749.20x = 247,415.40 × 127,400.10
  4. Step 4: Simplify right side
    164,749.20x = 31,520,746,701.54
  5. Step 5: Solve for x
    x = 31,520,746,701.54/164,749.20
  6. Step 6: Final answer
    x = 191,325.64

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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.