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Finding the Fourth Proportional to 101,353.46, 139,852.91 and 57,746.44

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Solution

The fourth proportional to 101,353.46, 139,852.91 and 57,746.44 is: 79,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,353.46 : 139,852.91 = 57,746.44 : x
  2. Step 2: Convert to fraction form
    101,353.46/139,852.91 = 57,746.44/x
  3. Step 3: Cross multiply
    101,353.46x = 139,852.91 × 57,746.44
  4. Step 4: Simplify right side
    101,353.46x = 8,076,006,688.14
  5. Step 5: Solve for x
    x = 8,076,006,688.14/101,353.46
  6. Step 6: Final answer
    x = 79,681.61

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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.