Home / 140,122.64-193,368.60-76,460.24

Finding the Fourth Proportional to 140,122.64, 193,368.60 and 76,460.24

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Solution

The fourth proportional to 140,122.64, 193,368.60 and 76,460.24 is: 105,514.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,122.64 : 193,368.60 = 76,460.24 : x
  2. Step 2: Convert to fraction form
    140,122.64/193,368.60 = 76,460.24/x
  3. Step 3: Cross multiply
    140,122.64x = 193,368.60 × 76,460.24
  4. Step 4: Simplify right side
    140,122.64x = 14,785,009,564.46
  5. Step 5: Solve for x
    x = 14,785,009,564.46/140,122.64
  6. Step 6: Final answer
    x = 105,514.78

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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.