Home / 122,900.08-169,601.16-69,185.76

Finding the Fourth Proportional to 122,900.08, 169,601.16 and 69,185.76

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Solution

The fourth proportional to 122,900.08, 169,601.16 and 69,185.76 is: 95,475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,900.08 : 169,601.16 = 69,185.76 : x
  2. Step 2: Convert to fraction form
    122,900.08/169,601.16 = 69,185.76/x
  3. Step 3: Cross multiply
    122,900.08x = 169,601.16 × 69,185.76
  4. Step 4: Simplify right side
    122,900.08x = 11,733,985,151.48
  5. Step 5: Solve for x
    x = 11,733,985,151.48/122,900.08
  6. Step 6: Final answer
    x = 95,475.81

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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.