Home / 126,911.73-175,115.99-72,439.03

Finding the Fourth Proportional to 126,911.73, 175,115.99 and 72,439.03

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Solution

The fourth proportional to 126,911.73, 175,115.99 and 72,439.03 is: 99,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,911.73 : 175,115.99 = 72,439.03 : x
  2. Step 2: Convert to fraction form
    126,911.73/175,115.99 = 72,439.03/x
  3. Step 3: Cross multiply
    126,911.73x = 175,115.99 × 72,439.03
  4. Step 4: Simplify right side
    126,911.73x = 12,685,232,090.89
  5. Step 5: Solve for x
    x = 12,685,232,090.89/126,911.73
  6. Step 6: Final answer
    x = 99,953.19

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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.