Home / 105,915.71-158,895.44-31,038.30

Finding the Fourth Proportional to 105,915.71, 158,895.44 and 31,038.30

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Solution

The fourth proportional to 105,915.71, 158,895.44 and 31,038.30 is: 46,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,915.71 : 158,895.44 = 31,038.30 : x
  2. Step 2: Convert to fraction form
    105,915.71/158,895.44 = 31,038.30/x
  3. Step 3: Cross multiply
    105,915.71x = 158,895.44 × 31,038.30
  4. Step 4: Simplify right side
    105,915.71x = 4,931,844,180.16
  5. Step 5: Solve for x
    x = 4,931,844,180.16/105,915.71
  6. Step 6: Final answer
    x = 46,563.86

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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.