Home / 102,062.31-140,848.88-61,783.35

Finding the Fourth Proportional to 102,062.31, 140,848.88 and 61,783.35

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Solution

The fourth proportional to 102,062.31, 140,848.88 and 61,783.35 is: 85,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,062.31 : 140,848.88 = 61,783.35 : x
  2. Step 2: Convert to fraction form
    102,062.31/140,848.88 = 61,783.35/x
  3. Step 3: Cross multiply
    102,062.31x = 140,848.88 × 61,783.35
  4. Step 4: Simplify right side
    102,062.31x = 8,702,115,650.15
  5. Step 5: Solve for x
    x = 8,702,115,650.15/102,062.31
  6. Step 6: Final answer
    x = 85,262.77

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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.