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Finding the Fourth Proportional to 101,925.75, 140,659.45 and 56,607.98

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Solution

The fourth proportional to 101,925.75, 140,659.45 and 56,607.98 is: 78,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,925.75 : 140,659.45 = 56,607.98 : x
  2. Step 2: Convert to fraction form
    101,925.75/140,659.45 = 56,607.98/x
  3. Step 3: Cross multiply
    101,925.75x = 140,659.45 × 56,607.98
  4. Step 4: Simplify right side
    101,925.75x = 7,962,447,674.41
  5. Step 5: Solve for x
    x = 7,962,447,674.41/101,925.75
  6. Step 6: Final answer
    x = 78,120.08

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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.