Home / 112,376.15-155,083.79-64,629.53

Finding the Fourth Proportional to 112,376.15, 155,083.79 and 64,629.53

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Solution

The fourth proportional to 112,376.15, 155,083.79 and 64,629.53 is: 89,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,376.15 : 155,083.79 = 64,629.53 : x
  2. Step 2: Convert to fraction form
    112,376.15/155,083.79 = 64,629.53/x
  3. Step 3: Cross multiply
    112,376.15x = 155,083.79 × 64,629.53
  4. Step 4: Simplify right side
    112,376.15x = 10,022,992,458.32
  5. Step 5: Solve for x
    x = 10,022,992,458.32/112,376.15
  6. Step 6: Final answer
    x = 89,191.46

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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.