Home / 117,980.75-162,814.86-64,266.21

Finding the Fourth Proportional to 117,980.75, 162,814.86 and 64,266.21

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Solution

The fourth proportional to 117,980.75, 162,814.86 and 64,266.21 is: 88,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,980.75 : 162,814.86 = 64,266.21 : x
  2. Step 2: Convert to fraction form
    117,980.75/162,814.86 = 64,266.21/x
  3. Step 3: Cross multiply
    117,980.75x = 162,814.86 × 64,266.21
  4. Step 4: Simplify right side
    117,980.75x = 10,463,493,983.88
  5. Step 5: Solve for x
    x = 10,463,493,983.88/117,980.75
  6. Step 6: Final answer
    x = 88,688.14

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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.