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Finding the Fourth Proportional to 164,513.70, 247,062.15 and 127,164.60

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Solution

The fourth proportional to 164,513.70, 247,062.15 and 127,164.60 is: 190,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,513.70 : 247,062.15 = 127,164.60 : x
  2. Step 2: Convert to fraction form
    164,513.70/247,062.15 = 127,164.60/x
  3. Step 3: Cross multiply
    164,513.70x = 247,062.15 × 127,164.60
  4. Step 4: Simplify right side
    164,513.70x = 31,417,559,479.89
  5. Step 5: Solve for x
    x = 31,417,559,479.89/164,513.70
  6. Step 6: Final answer
    x = 190,972.30

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1.5x scale

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.