Home / 102,001.60-140,759.40-56,678.41

Finding the Fourth Proportional to 102,001.60, 140,759.40 and 56,678.41

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Solution

The fourth proportional to 102,001.60, 140,759.40 and 56,678.41 is: 78,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,001.60 : 140,759.40 = 56,678.41 : x
  2. Step 2: Convert to fraction form
    102,001.60/140,759.40 = 56,678.41/x
  3. Step 3: Cross multiply
    102,001.60x = 140,759.40 × 56,678.41
  4. Step 4: Simplify right side
    102,001.60x = 7,978,018,984.55
  5. Step 5: Solve for x
    x = 7,978,018,984.55/102,001.60
  6. Step 6: Final answer
    x = 78,214.65

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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.