Home / 319,485.32-479,048.10-106,139

Finding the Fourth Proportional to 319,485.32, 479,048.10 and 106,139

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Solution

The fourth proportional to 319,485.32, 479,048.10 and 106,139 is: 159,148.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,485.32 : 479,048.10 = 106,139 : x
  2. Step 2: Convert to fraction form
    319,485.32/479,048.10 = 106,139/x
  3. Step 3: Cross multiply
    319,485.32x = 479,048.10 × 106,139
  4. Step 4: Simplify right side
    319,485.32x = 50,845,686,285.90
  5. Step 5: Solve for x
    x = 50,845,686,285.90/319,485.32
  6. Step 6: Final answer
    x = 159,148.74

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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.