Home / 112,983.96-155,922.75-67,669.32

Finding the Fourth Proportional to 112,983.96, 155,922.75 and 67,669.32

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Solution

The fourth proportional to 112,983.96, 155,922.75 and 67,669.32 is: 93,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,983.96 : 155,922.75 = 67,669.32 : x
  2. Step 2: Convert to fraction form
    112,983.96/155,922.75 = 67,669.32/x
  3. Step 3: Cross multiply
    112,983.96x = 155,922.75 × 67,669.32
  4. Step 4: Simplify right side
    112,983.96x = 10,551,186,465.03
  5. Step 5: Solve for x
    x = 10,551,186,465.03/112,983.96
  6. Step 6: Final answer
    x = 93,386.59

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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.