Home / 134,878.56-202,255.47-78,735.03

Finding the Fourth Proportional to 134,878.56, 202,255.47 and 78,735.03

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Solution

The fourth proportional to 134,878.56, 202,255.47 and 78,735.03 is: 118,066.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,878.56 : 202,255.47 = 78,735.03 : x
  2. Step 2: Convert to fraction form
    134,878.56/202,255.47 = 78,735.03/x
  3. Step 3: Cross multiply
    134,878.56x = 202,255.47 × 78,735.03
  4. Step 4: Simplify right side
    134,878.56x = 15,924,590,498.11
  5. Step 5: Solve for x
    x = 15,924,590,498.11/134,878.56
  6. Step 6: Final answer
    x = 118,066.14

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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.