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Finding the Fourth Proportional to 112,295.56, 154,968.12 and 61,308.30

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Solution

The fourth proportional to 112,295.56, 154,968.12 and 61,308.30 is: 84,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,295.56 : 154,968.12 = 61,308.30 : x
  2. Step 2: Convert to fraction form
    112,295.56/154,968.12 = 61,308.30/x
  3. Step 3: Cross multiply
    112,295.56x = 154,968.12 × 61,308.30
  4. Step 4: Simplify right side
    112,295.56x = 9,500,831,991.40
  5. Step 5: Solve for x
    x = 9,500,831,991.40/112,295.56
  6. Step 6: Final answer
    x = 84,605.59

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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.