Home / 199,580.32-299,418.34-66,461.80

Finding the Fourth Proportional to 199,580.32, 299,418.34 and 66,461.80

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Solution

The fourth proportional to 199,580.32, 299,418.34 and 66,461.80 is: 99,708.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,580.32 : 299,418.34 = 66,461.80 : x
  2. Step 2: Convert to fraction form
    199,580.32/299,418.34 = 66,461.80/x
  3. Step 3: Cross multiply
    199,580.32x = 299,418.34 × 66,461.80
  4. Step 4: Simplify right side
    199,580.32x = 19,899,881,829.41
  5. Step 5: Solve for x
    x = 19,899,881,829.41/199,580.32
  6. Step 6: Final answer
    x = 99,708.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.