Home / 134,910.18-186,176.10-74,480.88

Finding the Fourth Proportional to 134,910.18, 186,176.10 and 74,480.88

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Solution

The fourth proportional to 134,910.18, 186,176.10 and 74,480.88 is: 102,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,910.18 : 186,176.10 = 74,480.88 : x
  2. Step 2: Convert to fraction form
    134,910.18/186,176.10 = 74,480.88/x
  3. Step 3: Cross multiply
    134,910.18x = 186,176.10 × 74,480.88
  4. Step 4: Simplify right side
    134,910.18x = 13,866,559,762.97
  5. Step 5: Solve for x
    x = 13,866,559,762.97/134,910.18
  6. Step 6: Final answer
    x = 102,783.64

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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.