Home / 129,938.13-179,314.62-70,322.13

Finding the Fourth Proportional to 129,938.13, 179,314.62 and 70,322.13

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Solution

The fourth proportional to 129,938.13, 179,314.62 and 70,322.13 is: 97,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,938.13 : 179,314.62 = 70,322.13 : x
  2. Step 2: Convert to fraction form
    129,938.13/179,314.62 = 70,322.13/x
  3. Step 3: Cross multiply
    129,938.13x = 179,314.62 × 70,322.13
  4. Step 4: Simplify right side
    129,938.13x = 12,609,786,018.54
  5. Step 5: Solve for x
    x = 12,609,786,018.54/129,938.13
  6. Step 6: Final answer
    x = 97,044.54

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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.