Home / 113,213.76-156,235.70-70,797.12

Finding the Fourth Proportional to 113,213.76, 156,235.70 and 70,797.12

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Solution

The fourth proportional to 113,213.76, 156,235.70 and 70,797.12 is: 97,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,213.76 : 156,235.70 = 70,797.12 : x
  2. Step 2: Convert to fraction form
    113,213.76/156,235.70 = 70,797.12/x
  3. Step 3: Cross multiply
    113,213.76x = 156,235.70 × 70,797.12
  4. Step 4: Simplify right side
    113,213.76x = 11,061,037,601.18
  5. Step 5: Solve for x
    x = 11,061,037,601.18/113,213.76
  6. Step 6: Final answer
    x = 97,700.47

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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.