Home / 164,972.20-247,466.40-86,240.20

Finding the Fourth Proportional to 164,972.20, 247,466.40 and 86,240.20

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Solution

The fourth proportional to 164,972.20, 247,466.40 and 86,240.20 is: 129,364.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,972.20 : 247,466.40 = 86,240.20 : x
  2. Step 2: Convert to fraction form
    164,972.20/247,466.40 = 86,240.20/x
  3. Step 3: Cross multiply
    164,972.20x = 247,466.40 × 86,240.20
  4. Step 4: Simplify right side
    164,972.20x = 21,341,551,829.28
  5. Step 5: Solve for x
    x = 21,341,551,829.28/164,972.20
  6. Step 6: Final answer
    x = 129,364.53

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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.