Home / 212,742.72-319,152.06-70,596.51

Finding the Fourth Proportional to 212,742.72, 319,152.06 and 70,596.51

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Solution

The fourth proportional to 212,742.72, 319,152.06 and 70,596.51 is: 105,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,742.72 : 319,152.06 = 70,596.51 : x
  2. Step 2: Convert to fraction form
    212,742.72/319,152.06 = 70,596.51/x
  3. Step 3: Cross multiply
    212,742.72x = 319,152.06 × 70,596.51
  4. Step 4: Simplify right side
    212,742.72x = 22,531,021,595.31
  5. Step 5: Solve for x
    x = 22,531,021,595.31/212,742.72
  6. Step 6: Final answer
    x = 105,907.37

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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.