Home / 211,403.05-317,056.04-126,038.06

Finding the Fourth Proportional to 211,403.05, 317,056.04 and 126,038.06

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Solution

The fourth proportional to 211,403.05, 317,056.04 and 126,038.06 is: 189,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,403.05 : 317,056.04 = 126,038.06 : x
  2. Step 2: Convert to fraction form
    211,403.05/317,056.04 = 126,038.06/x
  3. Step 3: Cross multiply
    211,403.05x = 317,056.04 × 126,038.06
  4. Step 4: Simplify right side
    211,403.05x = 39,961,126,607.60
  5. Step 5: Solve for x
    x = 39,961,126,607.60/211,403.05
  6. Step 6: Final answer
    x = 189,028.15

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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.