Home / 115,889.04-159,915.36-68,154.12

Finding the Fourth Proportional to 115,889.04, 159,915.36 and 68,154.12

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Solution

The fourth proportional to 115,889.04, 159,915.36 and 68,154.12 is: 94,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,889.04 : 159,915.36 = 68,154.12 : x
  2. Step 2: Convert to fraction form
    115,889.04/159,915.36 = 68,154.12/x
  3. Step 3: Cross multiply
    115,889.04x = 159,915.36 × 68,154.12
  4. Step 4: Simplify right side
    115,889.04x = 10,898,890,635.28
  5. Step 5: Solve for x
    x = 10,898,890,635.28/115,889.04
  6. Step 6: Final answer
    x = 94,045.91

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1.5x scale

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.