Home / 112,657.77-155,418.19-67,313.06

Finding the Fourth Proportional to 112,657.77, 155,418.19 and 67,313.06

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Solution

The fourth proportional to 112,657.77, 155,418.19 and 67,313.06 is: 92,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,657.77 : 155,418.19 = 67,313.06 : x
  2. Step 2: Convert to fraction form
    112,657.77/155,418.19 = 67,313.06/x
  3. Step 3: Cross multiply
    112,657.77x = 155,418.19 × 67,313.06
  4. Step 4: Simplify right side
    112,657.77x = 10,461,673,964.64
  5. Step 5: Solve for x
    x = 10,461,673,964.64/112,657.77
  6. Step 6: Final answer
    x = 92,862.43

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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.