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Finding the Fourth Proportional to 101,347.03, 139,858.95 and 56,635.03

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Solution

The fourth proportional to 101,347.03, 139,858.95 and 56,635.03 is: 78,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,347.03 : 139,858.95 = 56,635.03 : x
  2. Step 2: Convert to fraction form
    101,347.03/139,858.95 = 56,635.03/x
  3. Step 3: Cross multiply
    101,347.03x = 139,858.95 × 56,635.03
  4. Step 4: Simplify right side
    101,347.03x = 7,920,915,829.02
  5. Step 5: Solve for x
    x = 7,920,915,829.02/101,347.03
  6. Step 6: Final answer
    x = 78,156.37

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1.5x scale

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.