Home / 113,423.23-156,515.02-65,679.67

Finding the Fourth Proportional to 113,423.23, 156,515.02 and 65,679.67

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Solution

The fourth proportional to 113,423.23, 156,515.02 and 65,679.67 is: 90,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,423.23 : 156,515.02 = 65,679.67 : x
  2. Step 2: Convert to fraction form
    113,423.23/156,515.02 = 65,679.67/x
  3. Step 3: Cross multiply
    113,423.23x = 156,515.02 × 65,679.67
  4. Step 4: Simplify right side
    113,423.23x = 10,279,854,863.64
  5. Step 5: Solve for x
    x = 10,279,854,863.64/113,423.23
  6. Step 6: Final answer
    x = 90,632.71

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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.