Home / 115,124.64-158,868.50-64,137.35

Finding the Fourth Proportional to 115,124.64, 158,868.50 and 64,137.35

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Solution

The fourth proportional to 115,124.64, 158,868.50 and 64,137.35 is: 88,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,124.64 : 158,868.50 = 64,137.35 : x
  2. Step 2: Convert to fraction form
    115,124.64/158,868.50 = 64,137.35/x
  3. Step 3: Cross multiply
    115,124.64x = 158,868.50 × 64,137.35
  4. Step 4: Simplify right side
    115,124.64x = 10,189,403,473.45
  5. Step 5: Solve for x
    x = 10,189,403,473.45/115,124.64
  6. Step 6: Final answer
    x = 88,507.58

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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.