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Finding the Fourth Proportional to 115,554.40, 173,072.40 and 112,962.40

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Solution

The fourth proportional to 115,554.40, 173,072.40 and 112,962.40 is: 169,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,554.40 : 173,072.40 = 112,962.40 : x
  2. Step 2: Convert to fraction form
    115,554.40/173,072.40 = 112,962.40/x
  3. Step 3: Cross multiply
    115,554.40x = 173,072.40 × 112,962.40
  4. Step 4: Simplify right side
    115,554.40x = 19,550,673,677.76
  5. Step 5: Solve for x
    x = 19,550,673,677.76/115,554.40
  6. Step 6: Final answer
    x = 169,190.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.