Home / 239,715.48-330,805.98-139,111.32

Finding the Fourth Proportional to 239,715.48, 330,805.98 and 139,111.32

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Solution

The fourth proportional to 239,715.48, 330,805.98 and 139,111.32 is: 191,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,715.48 : 330,805.98 = 139,111.32 : x
  2. Step 2: Convert to fraction form
    239,715.48/330,805.98 = 139,111.32/x
  3. Step 3: Cross multiply
    239,715.48x = 330,805.98 × 139,111.32
  4. Step 4: Simplify right side
    239,715.48x = 46,018,856,541.69
  5. Step 5: Solve for x
    x = 46,018,856,541.69/239,715.48
  6. Step 6: Final answer
    x = 191,972.82

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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.