Home / 122,734.37-169,421.69-77,403.33

Finding the Fourth Proportional to 122,734.37, 169,421.69 and 77,403.33

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Solution

The fourth proportional to 122,734.37, 169,421.69 and 77,403.33 is: 106,847.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,734.37 : 169,421.69 = 77,403.33 : x
  2. Step 2: Convert to fraction form
    122,734.37/169,421.69 = 77,403.33/x
  3. Step 3: Cross multiply
    122,734.37x = 169,421.69 × 77,403.33
  4. Step 4: Simplify right side
    122,734.37x = 13,113,803,173.74
  5. Step 5: Solve for x
    x = 13,113,803,173.74/122,734.37
  6. Step 6: Final answer
    x = 106,847.03

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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.