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Finding the Fourth Proportional to 104,522.48, 156,433.76 and 85,801.76

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Solution

The fourth proportional to 104,522.48, 156,433.76 and 85,801.76 is: 128,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,522.48 : 156,433.76 = 85,801.76 : x
  2. Step 2: Convert to fraction form
    104,522.48/156,433.76 = 85,801.76/x
  3. Step 3: Cross multiply
    104,522.48x = 156,433.76 × 85,801.76
  4. Step 4: Simplify right side
    104,522.48x = 13,422,291,931.42
  5. Step 5: Solve for x
    x = 13,422,291,931.42/104,522.48
  6. Step 6: Final answer
    x = 128,415.36

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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.