Home / 129,653.02-178,920.90-70,037.02

Finding the Fourth Proportional to 129,653.02, 178,920.90 and 70,037.02

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Solution

The fourth proportional to 129,653.02, 178,920.90 and 70,037.02 is: 96,650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,653.02 : 178,920.90 = 70,037.02 : x
  2. Step 2: Convert to fraction form
    129,653.02/178,920.90 = 70,037.02/x
  3. Step 3: Cross multiply
    129,653.02x = 178,920.90 × 70,037.02
  4. Step 4: Simplify right side
    129,653.02x = 12,531,086,651.72
  5. Step 5: Solve for x
    x = 12,531,086,651.72/129,653.02
  6. Step 6: Final answer
    x = 96,650.94

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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.