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Finding the Fourth Proportional to 169,948.80, 255,117.60 and 99,867.60

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Solution

The fourth proportional to 169,948.80, 255,117.60 and 99,867.60 is: 149,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,948.80 : 255,117.60 = 99,867.60 : x
  2. Step 2: Convert to fraction form
    169,948.80/255,117.60 = 99,867.60/x
  3. Step 3: Cross multiply
    169,948.80x = 255,117.60 × 99,867.60
  4. Step 4: Simplify right side
    169,948.80x = 25,477,982,429.76
  5. Step 5: Solve for x
    x = 25,477,982,429.76/169,948.80
  6. Step 6: Final answer
    x = 149,915.64

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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.