Home / 128,157.36-192,271.02-61,653.12

Finding the Fourth Proportional to 128,157.36, 192,271.02 and 61,653.12

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Solution

The fourth proportional to 128,157.36, 192,271.02 and 61,653.12 is: 92,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,157.36 : 192,271.02 = 61,653.12 : x
  2. Step 2: Convert to fraction form
    128,157.36/192,271.02 = 61,653.12/x
  3. Step 3: Cross multiply
    128,157.36x = 192,271.02 × 61,653.12
  4. Step 4: Simplify right side
    128,157.36x = 11,854,108,268.58
  5. Step 5: Solve for x
    x = 11,854,108,268.58/128,157.36
  6. Step 6: Final answer
    x = 92,496.51

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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.