Home / 129,623.63-178,880.60-70,007.63

Finding the Fourth Proportional to 129,623.63, 178,880.60 and 70,007.63

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Solution

The fourth proportional to 129,623.63, 178,880.60 and 70,007.63 is: 96,610.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,623.63 : 178,880.60 = 70,007.63 : x
  2. Step 2: Convert to fraction form
    129,623.63/178,880.60 = 70,007.63/x
  3. Step 3: Cross multiply
    129,623.63x = 178,880.60 × 70,007.63
  4. Step 4: Simplify right side
    129,623.63x = 12,523,006,139.59
  5. Step 5: Solve for x
    x = 12,523,006,139.59/129,623.63
  6. Step 6: Final answer
    x = 96,610.52

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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.