Home / 127,860.12-191,544.65-71,529.51

Finding the Fourth Proportional to 127,860.12, 191,544.65 and 71,529.51

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Solution

The fourth proportional to 127,860.12, 191,544.65 and 71,529.51 is: 107,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,860.12 : 191,544.65 = 71,529.51 : x
  2. Step 2: Convert to fraction form
    127,860.12/191,544.65 = 71,529.51/x
  3. Step 3: Cross multiply
    127,860.12x = 191,544.65 × 71,529.51
  4. Step 4: Simplify right side
    127,860.12x = 13,701,095,586.50
  5. Step 5: Solve for x
    x = 13,701,095,586.50/127,860.12
  6. Step 6: Final answer
    x = 107,156.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.