Home / 122,008.07-168,303.83-85,765.23

Finding the Fourth Proportional to 122,008.07, 168,303.83 and 85,765.23

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Solution

The fourth proportional to 122,008.07, 168,303.83 and 85,765.23 is: 118,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,008.07 : 168,303.83 = 85,765.23 : x
  2. Step 2: Convert to fraction form
    122,008.07/168,303.83 = 85,765.23/x
  3. Step 3: Cross multiply
    122,008.07x = 168,303.83 × 85,765.23
  4. Step 4: Simplify right side
    122,008.07x = 14,434,616,261.00
  5. Step 5: Solve for x
    x = 14,434,616,261.00/122,008.07
  6. Step 6: Final answer
    x = 118,308.70

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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.