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Finding the Fourth Proportional to 115,102.42, 158,848.63 and 64,804.66

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Solution

The fourth proportional to 115,102.42, 158,848.63 and 64,804.66 is: 89,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,102.42 : 158,848.63 = 64,804.66 : x
  2. Step 2: Convert to fraction form
    115,102.42/158,848.63 = 64,804.66/x
  3. Step 3: Cross multiply
    115,102.42x = 158,848.63 × 64,804.66
  4. Step 4: Simplify right side
    115,102.42x = 10,294,130,899.48
  5. Step 5: Solve for x
    x = 10,294,130,899.48/115,102.42
  6. Step 6: Final answer
    x = 89,434.53

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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.