Home / 115,103.15-158,821.29-64,114.58

Finding the Fourth Proportional to 115,103.15, 158,821.29 and 64,114.58

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Solution

The fourth proportional to 115,103.15, 158,821.29 and 64,114.58 is: 88,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,103.15 : 158,821.29 = 64,114.58 : x
  2. Step 2: Convert to fraction form
    115,103.15/158,821.29 = 64,114.58/x
  3. Step 3: Cross multiply
    115,103.15x = 158,821.29 × 64,114.58
  4. Step 4: Simplify right side
    115,103.15x = 10,182,759,509.30
  5. Step 5: Solve for x
    x = 10,182,759,509.30/115,103.15
  6. Step 6: Final answer
    x = 88,466.39

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1.5x scale

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.