Home / 129,938.64-179,315.30-70,322.64

Finding the Fourth Proportional to 129,938.64, 179,315.30 and 70,322.64

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Solution

The fourth proportional to 129,938.64, 179,315.30 and 70,322.64 is: 97,045.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,938.64 : 179,315.30 = 70,322.64 : x
  2. Step 2: Convert to fraction form
    129,938.64/179,315.30 = 70,322.64/x
  3. Step 3: Cross multiply
    129,938.64x = 179,315.30 × 70,322.64
  4. Step 4: Simplify right side
    129,938.64x = 12,609,925,288.39
  5. Step 5: Solve for x
    x = 12,609,925,288.39/129,938.64
  6. Step 6: Final answer
    x = 97,045.23

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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.