Home / 135,177.58-186,541.76-74,746.67

Finding the Fourth Proportional to 135,177.58, 186,541.76 and 74,746.67

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Solution

The fourth proportional to 135,177.58, 186,541.76 and 74,746.67 is: 103,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,177.58 : 186,541.76 = 74,746.67 : x
  2. Step 2: Convert to fraction form
    135,177.58/186,541.76 = 74,746.67/x
  3. Step 3: Cross multiply
    135,177.58x = 186,541.76 × 74,746.67
  4. Step 4: Simplify right side
    135,177.58x = 13,943,375,375.94
  5. Step 5: Solve for x
    x = 13,943,375,375.94/135,177.58
  6. Step 6: Final answer
    x = 103,148.58

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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.