Home / 122,022.52-168,390.18-68,307.40

Finding the Fourth Proportional to 122,022.52, 168,390.18 and 68,307.40

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Solution

The fourth proportional to 122,022.52, 168,390.18 and 68,307.40 is: 94,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,022.52 : 168,390.18 = 68,307.40 : x
  2. Step 2: Convert to fraction form
    122,022.52/168,390.18 = 68,307.40/x
  3. Step 3: Cross multiply
    122,022.52x = 168,390.18 × 68,307.40
  4. Step 4: Simplify right side
    122,022.52x = 11,502,295,381.33
  5. Step 5: Solve for x
    x = 11,502,295,381.33/122,022.52
  6. Step 6: Final answer
    x = 94,263.71

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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.