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Finding the Fourth Proportional to 145,915.20, 201,463.20 and 110,145.60

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Solution

The fourth proportional to 145,915.20, 201,463.20 and 110,145.60 is: 152,076.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,915.20 : 201,463.20 = 110,145.60 : x
  2. Step 2: Convert to fraction form
    145,915.20/201,463.20 = 110,145.60/x
  3. Step 3: Cross multiply
    145,915.20x = 201,463.20 × 110,145.60
  4. Step 4: Simplify right side
    145,915.20x = 22,190,285,041.92
  5. Step 5: Solve for x
    x = 22,190,285,041.92/145,915.20
  6. Step 6: Final answer
    x = 152,076.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.