Home / 112,945.08-155,867.58-62,643

Finding the Fourth Proportional to 112,945.08, 155,867.58 and 62,643

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Solution

The fourth proportional to 112,945.08, 155,867.58 and 62,643 is: 86,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,945.08 : 155,867.58 = 62,643 : x
  2. Step 2: Convert to fraction form
    112,945.08/155,867.58 = 62,643/x
  3. Step 3: Cross multiply
    112,945.08x = 155,867.58 × 62,643
  4. Step 4: Simplify right side
    112,945.08x = 9,764,012,813.94
  5. Step 5: Solve for x
    x = 9,764,012,813.94/112,945.08
  6. Step 6: Final answer
    x = 86,449.21

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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.