Home / 128,848.08-193,327.74-69,725.46

Finding the Fourth Proportional to 128,848.08, 193,327.74 and 69,725.46

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Solution

The fourth proportional to 128,848.08, 193,327.74 and 69,725.46 is: 104,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,848.08 : 193,327.74 = 69,725.46 : x
  2. Step 2: Convert to fraction form
    128,848.08/193,327.74 = 69,725.46/x
  3. Step 3: Cross multiply
    128,848.08x = 193,327.74 × 69,725.46
  4. Step 4: Simplify right side
    128,848.08x = 13,479,865,602.26
  5. Step 5: Solve for x
    x = 13,479,865,602.26/128,848.08
  6. Step 6: Final answer
    x = 104,618.29

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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.