Home / 122,830.86-169,509.18-69,115.88

Finding the Fourth Proportional to 122,830.86, 169,509.18 and 69,115.88

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Solution

The fourth proportional to 122,830.86, 169,509.18 and 69,115.88 is: 95,381.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,830.86 : 169,509.18 = 69,115.88 : x
  2. Step 2: Convert to fraction form
    122,830.86/169,509.18 = 69,115.88/x
  3. Step 3: Cross multiply
    122,830.86x = 169,509.18 × 69,115.88
  4. Step 4: Simplify right side
    122,830.86x = 11,715,776,632.35
  5. Step 5: Solve for x
    x = 11,715,776,632.35/122,830.86
  6. Step 6: Final answer
    x = 95,381.37

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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.