Home / 113,206.76-156,226.04-70,790.12

Finding the Fourth Proportional to 113,206.76, 156,226.04 and 70,790.12

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Solution

The fourth proportional to 113,206.76, 156,226.04 and 70,790.12 is: 97,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,206.76 : 156,226.04 = 70,790.12 : x
  2. Step 2: Convert to fraction form
    113,206.76/156,226.04 = 70,790.12/x
  3. Step 3: Cross multiply
    113,206.76x = 156,226.04 × 70,790.12
  4. Step 4: Simplify right side
    113,206.76x = 11,059,260,118.72
  5. Step 5: Solve for x
    x = 11,059,260,118.72/113,206.76
  6. Step 6: Final answer
    x = 97,690.81

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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.