Home / 112,918.87-155,436.90-97,598.44

Finding the Fourth Proportional to 112,918.87, 155,436.90 and 97,598.44

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Solution

The fourth proportional to 112,918.87, 155,436.90 and 97,598.44 is: 134,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,918.87 : 155,436.90 = 97,598.44 : x
  2. Step 2: Convert to fraction form
    112,918.87/155,436.90 = 97,598.44/x
  3. Step 3: Cross multiply
    112,918.87x = 155,436.90 × 97,598.44
  4. Step 4: Simplify right side
    112,918.87x = 15,170,398,958.44
  5. Step 5: Solve for x
    x = 15,170,398,958.44/112,918.87
  6. Step 6: Final answer
    x = 134,347.78

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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.