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Finding the Fourth Proportional to 88,575, 122,452.20 and 84,857.10

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Solution

The fourth proportional to 88,575, 122,452.20 and 84,857.10 is: 117,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,575 : 122,452.20 = 84,857.10 : x
  2. Step 2: Convert to fraction form
    88,575/122,452.20 = 84,857.10/x
  3. Step 3: Cross multiply
    88,575x = 122,452.20 × 84,857.10
  4. Step 4: Simplify right side
    88,575x = 10,390,938,580.62
  5. Step 5: Solve for x
    x = 10,390,938,580.62/88,575
  6. Step 6: Final answer
    x = 117,312.32

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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.