Home / 98,741.86-136,215.48-64,735.36

Finding the Fourth Proportional to 98,741.86, 136,215.48 and 64,735.36

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Solution

The fourth proportional to 98,741.86, 136,215.48 and 64,735.36 is: 89,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,741.86 : 136,215.48 = 64,735.36 : x
  2. Step 2: Convert to fraction form
    98,741.86/136,215.48 = 64,735.36/x
  3. Step 3: Cross multiply
    98,741.86x = 136,215.48 × 64,735.36
  4. Step 4: Simplify right side
    98,741.86x = 8,817,958,135.37
  5. Step 5: Solve for x
    x = 8,817,958,135.37/98,741.86
  6. Step 6: Final answer
    x = 89,303.14

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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.