Home / 112,606.81-154,569.57-99,574.41

Finding the Fourth Proportional to 112,606.81, 154,569.57 and 99,574.41

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Solution

The fourth proportional to 112,606.81, 154,569.57 and 99,574.41 is: 136,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,606.81 : 154,569.57 = 99,574.41 : x
  2. Step 2: Convert to fraction form
    112,606.81/154,569.57 = 99,574.41/x
  3. Step 3: Cross multiply
    112,606.81x = 154,569.57 × 99,574.41
  4. Step 4: Simplify right side
    112,606.81x = 15,391,173,942.94
  5. Step 5: Solve for x
    x = 15,391,173,942.94/112,606.81
  6. Step 6: Final answer
    x = 136,680.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.