Home / 128,434.51-192,569.73-61,741.93

Finding the Fourth Proportional to 128,434.51, 192,569.73 and 61,741.93

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Solution

The fourth proportional to 128,434.51, 192,569.73 and 61,741.93 is: 92,573.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,434.51 : 192,569.73 = 61,741.93 : x
  2. Step 2: Convert to fraction form
    128,434.51/192,569.73 = 61,741.93/x
  3. Step 3: Cross multiply
    128,434.51x = 192,569.73 × 61,741.93
  4. Step 4: Simplify right side
    128,434.51x = 11,889,626,789.78
  5. Step 5: Solve for x
    x = 11,889,626,789.78/128,434.51
  6. Step 6: Final answer
    x = 92,573.46

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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.