Home / 113,405.27-156,499.09-70,368.75

Finding the Fourth Proportional to 113,405.27, 156,499.09 and 70,368.75

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Solution

The fourth proportional to 113,405.27, 156,499.09 and 70,368.75 is: 97,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,405.27 : 156,499.09 = 70,368.75 : x
  2. Step 2: Convert to fraction form
    113,405.27/156,499.09 = 70,368.75/x
  3. Step 3: Cross multiply
    113,405.27x = 156,499.09 × 70,368.75
  4. Step 4: Simplify right side
    113,405.27x = 11,012,645,163.52
  5. Step 5: Solve for x
    x = 11,012,645,163.52/113,405.27
  6. Step 6: Final answer
    x = 97,108.76

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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.