Home / 135,087.40-202,688.70-64,930.60

Finding the Fourth Proportional to 135,087.40, 202,688.70 and 64,930.60

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Solution

The fourth proportional to 135,087.40, 202,688.70 and 64,930.60 is: 97,423.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,087.40 : 202,688.70 = 64,930.60 : x
  2. Step 2: Convert to fraction form
    135,087.40/202,688.70 = 64,930.60/x
  3. Step 3: Cross multiply
    135,087.40x = 202,688.70 × 64,930.60
  4. Step 4: Simplify right side
    135,087.40x = 13,160,698,904.22
  5. Step 5: Solve for x
    x = 13,160,698,904.22/135,087.40
  6. Step 6: Final answer
    x = 97,423.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.