Home / 113,286.80-156,333.20-61,602.76

Finding the Fourth Proportional to 113,286.80, 156,333.20 and 61,602.76

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Solution

The fourth proportional to 113,286.80, 156,333.20 and 61,602.76 is: 85,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,286.80 : 156,333.20 = 61,602.76 : x
  2. Step 2: Convert to fraction form
    113,286.80/156,333.20 = 61,602.76/x
  3. Step 3: Cross multiply
    113,286.80x = 156,333.20 × 61,602.76
  4. Step 4: Simplify right side
    113,286.80x = 9,630,556,599.63
  5. Step 5: Solve for x
    x = 9,630,556,599.63/113,286.80
  6. Step 6: Final answer
    x = 85,010.40

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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.