Home / 134,890.43-186,146.54-74,459.51

Finding the Fourth Proportional to 134,890.43, 186,146.54 and 74,459.51

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Solution

The fourth proportional to 134,890.43, 186,146.54 and 74,459.51 is: 102,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,890.43 : 186,146.54 = 74,459.51 : x
  2. Step 2: Convert to fraction form
    134,890.43/186,146.54 = 74,459.51/x
  3. Step 3: Cross multiply
    134,890.43x = 186,146.54 × 74,459.51
  4. Step 4: Simplify right side
    134,890.43x = 13,860,379,225.86
  5. Step 5: Solve for x
    x = 13,860,379,225.86/134,890.43
  6. Step 6: Final answer
    x = 102,752.88

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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.