Home / 129,522.84-178,673.10-89,166.54

Finding the Fourth Proportional to 129,522.84, 178,673.10 and 89,166.54

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Solution

The fourth proportional to 129,522.84, 178,673.10 and 89,166.54 is: 123,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,522.84 : 178,673.10 = 89,166.54 : x
  2. Step 2: Convert to fraction form
    129,522.84/178,673.10 = 89,166.54/x
  3. Step 3: Cross multiply
    129,522.84x = 178,673.10 × 89,166.54
  4. Step 4: Simplify right side
    129,522.84x = 15,931,662,118.07
  5. Step 5: Solve for x
    x = 15,931,662,118.07/129,522.84
  6. Step 6: Final answer
    x = 123,002.72

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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.