Home / 164,513.20-247,061.40-127,164.10

Finding the Fourth Proportional to 164,513.20, 247,061.40 and 127,164.10

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Solution

The fourth proportional to 164,513.20, 247,061.40 and 127,164.10 is: 190,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,513.20 : 247,061.40 = 127,164.10 : x
  2. Step 2: Convert to fraction form
    164,513.20/247,061.40 = 127,164.10/x
  3. Step 3: Cross multiply
    164,513.20x = 247,061.40 × 127,164.10
  4. Step 4: Simplify right side
    164,513.20x = 31,417,340,575.74
  5. Step 5: Solve for x
    x = 31,417,340,575.74/164,513.20
  6. Step 6: Final answer
    x = 190,971.55

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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.