Home / 129,623.50-178,880.43-70,007.50

Finding the Fourth Proportional to 129,623.50, 178,880.43 and 70,007.50

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Solution

The fourth proportional to 129,623.50, 178,880.43 and 70,007.50 is: 96,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,623.50 : 178,880.43 = 70,007.50 : x
  2. Step 2: Convert to fraction form
    129,623.50/178,880.43 = 70,007.50/x
  3. Step 3: Cross multiply
    129,623.50x = 178,880.43 × 70,007.50
  4. Step 4: Simplify right side
    129,623.50x = 12,522,971,703.23
  5. Step 5: Solve for x
    x = 12,522,971,703.23/129,623.50
  6. Step 6: Final answer
    x = 96,610.35

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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.