Home / 125,846.42-173,671.90-72,141.80

Finding the Fourth Proportional to 125,846.42, 173,671.90 and 72,141.80

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Solution

The fourth proportional to 125,846.42, 173,671.90 and 72,141.80 is: 99,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,846.42 : 173,671.90 = 72,141.80 : x
  2. Step 2: Convert to fraction form
    125,846.42/173,671.90 = 72,141.80/x
  3. Step 3: Cross multiply
    125,846.42x = 173,671.90 × 72,141.80
  4. Step 4: Simplify right side
    125,846.42x = 12,529,003,475.42
  5. Step 5: Solve for x
    x = 12,529,003,475.42/125,846.42
  6. Step 6: Final answer
    x = 99,557.89

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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.