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Finding the Fourth Proportional to 155,533.60, 233,127.60 and 85,463.20

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Solution

The fourth proportional to 155,533.60, 233,127.60 and 85,463.20 is: 128,099.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,533.60 : 233,127.60 = 85,463.20 : x
  2. Step 2: Convert to fraction form
    155,533.60/233,127.60 = 85,463.20/x
  3. Step 3: Cross multiply
    155,533.60x = 233,127.60 × 85,463.20
  4. Step 4: Simplify right side
    155,533.60x = 19,923,830,704.32
  5. Step 5: Solve for x
    x = 19,923,830,704.32/155,533.60
  6. Step 6: Final answer
    x = 128,099.85

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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.