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Finding the Fourth Proportional to 101,337.64, 139,840.48 and 56,012.92

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Solution

The fourth proportional to 101,337.64, 139,840.48 and 56,012.92 is: 77,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,337.64 : 139,840.48 = 56,012.92 : x
  2. Step 2: Convert to fraction form
    101,337.64/139,840.48 = 56,012.92/x
  3. Step 3: Cross multiply
    101,337.64x = 139,840.48 × 56,012.92
  4. Step 4: Simplify right side
    101,337.64x = 7,832,873,619.00
  5. Step 5: Solve for x
    x = 7,832,873,619.00/101,337.64
  6. Step 6: Final answer
    x = 77,294.81

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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.