Home / 134,830.76-186,059.18-74,389.56

Finding the Fourth Proportional to 134,830.76, 186,059.18 and 74,389.56

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Solution

The fourth proportional to 134,830.76, 186,059.18 and 74,389.56 is: 102,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,830.76 : 186,059.18 = 74,389.56 : x
  2. Step 2: Convert to fraction form
    134,830.76/186,059.18 = 74,389.56/x
  3. Step 3: Cross multiply
    134,830.76x = 186,059.18 × 74,389.56
  4. Step 4: Simplify right side
    134,830.76x = 13,840,860,534.16
  5. Step 5: Solve for x
    x = 13,840,860,534.16/134,830.76
  6. Step 6: Final answer
    x = 102,653.58

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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.