Home / 129,938.63-179,315.30-70,322.63

Finding the Fourth Proportional to 129,938.63, 179,315.30 and 70,322.63

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Solution

The fourth proportional to 129,938.63, 179,315.30 and 70,322.63 is: 97,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,938.63 : 179,315.30 = 70,322.63 : x
  2. Step 2: Convert to fraction form
    129,938.63/179,315.30 = 70,322.63/x
  3. Step 3: Cross multiply
    129,938.63x = 179,315.30 × 70,322.63
  4. Step 4: Simplify right side
    129,938.63x = 12,609,923,495.24
  5. Step 5: Solve for x
    x = 12,609,923,495.24/129,938.63
  6. Step 6: Final answer
    x = 97,045.22

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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.