Home / 129,918.42-179,287.92-70,302.42

Finding the Fourth Proportional to 129,918.42, 179,287.92 and 70,302.42

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Solution

The fourth proportional to 129,918.42, 179,287.92 and 70,302.42 is: 97,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,918.42 : 179,287.92 = 70,302.42 : x
  2. Step 2: Convert to fraction form
    129,918.42/179,287.92 = 70,302.42/x
  3. Step 3: Cross multiply
    129,918.42x = 179,287.92 × 70,302.42
  4. Step 4: Simplify right side
    129,918.42x = 12,604,374,652.77
  5. Step 5: Solve for x
    x = 12,604,374,652.77/129,918.42
  6. Step 6: Final answer
    x = 97,017.61

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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.