Home / 112,271.81-154,935.08-76,524.28

Finding the Fourth Proportional to 112,271.81, 154,935.08 and 76,524.28

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Solution

The fourth proportional to 112,271.81, 154,935.08 and 76,524.28 is: 105,603.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,271.81 : 154,935.08 = 76,524.28 : x
  2. Step 2: Convert to fraction form
    112,271.81/154,935.08 = 76,524.28/x
  3. Step 3: Cross multiply
    112,271.81x = 154,935.08 × 76,524.28
  4. Step 4: Simplify right side
    112,271.81x = 11,856,294,960.75
  5. Step 5: Solve for x
    x = 11,856,294,960.75/112,271.81
  6. Step 6: Final answer
    x = 105,603.49

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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.