Home / 129,624.63-178,882.05-70,008.63

Finding the Fourth Proportional to 129,624.63, 178,882.05 and 70,008.63

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Solution

The fourth proportional to 129,624.63, 178,882.05 and 70,008.63 is: 96,611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,624.63 : 178,882.05 = 70,008.63 : x
  2. Step 2: Convert to fraction form
    129,624.63/178,882.05 = 70,008.63/x
  3. Step 3: Cross multiply
    129,624.63x = 178,882.05 × 70,008.63
  4. Step 4: Simplify right side
    129,624.63x = 12,523,287,252.09
  5. Step 5: Solve for x
    x = 12,523,287,252.09/129,624.63
  6. Step 6: Final answer
    x = 96,611.94

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1.5x scale

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.