Home / 147,435.76-221,022.68-57,457.64

Finding the Fourth Proportional to 147,435.76, 221,022.68 and 57,457.64

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Solution

The fourth proportional to 147,435.76, 221,022.68 and 57,457.64 is: 86,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,435.76 : 221,022.68 = 57,457.64 : x
  2. Step 2: Convert to fraction form
    147,435.76/221,022.68 = 57,457.64/x
  3. Step 3: Cross multiply
    147,435.76x = 221,022.68 × 57,457.64
  4. Step 4: Simplify right side
    147,435.76x = 12,699,441,579.28
  5. Step 5: Solve for x
    x = 12,699,441,579.28/147,435.76
  6. Step 6: Final answer
    x = 86,135.42

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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.