Home / 113,201.74-156,219.15-70,785.10

Finding the Fourth Proportional to 113,201.74, 156,219.15 and 70,785.10

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Solution

The fourth proportional to 113,201.74, 156,219.15 and 70,785.10 is: 97,683.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,201.74 : 156,219.15 = 70,785.10 : x
  2. Step 2: Convert to fraction form
    113,201.74/156,219.15 = 70,785.10/x
  3. Step 3: Cross multiply
    113,201.74x = 156,219.15 × 70,785.10
  4. Step 4: Simplify right side
    113,201.74x = 11,057,988,154.67
  5. Step 5: Solve for x
    x = 11,057,988,154.67/113,201.74
  6. Step 6: Final answer
    x = 97,683.91

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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.