Home / 118,122.66-163,048.77-70,390.98

Finding the Fourth Proportional to 118,122.66, 163,048.77 and 70,390.98

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Solution

The fourth proportional to 118,122.66, 163,048.77 and 70,390.98 is: 97,163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,122.66 : 163,048.77 = 70,390.98 : x
  2. Step 2: Convert to fraction form
    118,122.66/163,048.77 = 70,390.98/x
  3. Step 3: Cross multiply
    118,122.66x = 163,048.77 × 70,390.98
  4. Step 4: Simplify right side
    118,122.66x = 11,477,162,708.09
  5. Step 5: Solve for x
    x = 11,477,162,708.09/118,122.66
  6. Step 6: Final answer
    x = 97,163.09

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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.