Home / 113,609.19-156,807.38-70,621.11

Finding the Fourth Proportional to 113,609.19, 156,807.38 and 70,621.11

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Solution

The fourth proportional to 113,609.19, 156,807.38 and 70,621.11 is: 97,473.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,609.19 : 156,807.38 = 70,621.11 : x
  2. Step 2: Convert to fraction form
    113,609.19/156,807.38 = 70,621.11/x
  3. Step 3: Cross multiply
    113,609.19x = 156,807.38 × 70,621.11
  4. Step 4: Simplify right side
    113,609.19x = 11,073,910,878.69
  5. Step 5: Solve for x
    x = 11,073,910,878.69/113,609.19
  6. Step 6: Final answer
    x = 97,473.72

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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.