Home / 140,495.51-193,886.64-76,837.40

Finding the Fourth Proportional to 140,495.51, 193,886.64 and 76,837.40

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Solution

The fourth proportional to 140,495.51, 193,886.64 and 76,837.40 is: 106,037.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,495.51 : 193,886.64 = 76,837.40 : x
  2. Step 2: Convert to fraction form
    140,495.51/193,886.64 = 76,837.40/x
  3. Step 3: Cross multiply
    140,495.51x = 193,886.64 × 76,837.40
  4. Step 4: Simplify right side
    140,495.51x = 14,897,745,797.05
  5. Step 5: Solve for x
    x = 14,897,745,797.05/140,495.51
  6. Step 6: Final answer
    x = 106,037.17

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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.