Home / 72,846.10-109,099.76-70,320.57

Finding the Fourth Proportional to 72,846.10, 109,099.76 and 70,320.57

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Solution

The fourth proportional to 72,846.10, 109,099.76 and 70,320.57 is: 105,317.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,846.10 : 109,099.76 = 70,320.57 : x
  2. Step 2: Convert to fraction form
    72,846.10/109,099.76 = 70,320.57/x
  3. Step 3: Cross multiply
    72,846.10x = 109,099.76 × 70,320.57
  4. Step 4: Simplify right side
    72,846.10x = 7,671,957,310.06
  5. Step 5: Solve for x
    x = 7,671,957,310.06/72,846.10
  6. Step 6: Final answer
    x = 105,317.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.