Home / 122,758.08-169,411.20-69,045.60

Finding the Fourth Proportional to 122,758.08, 169,411.20 and 69,045.60

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Solution

The fourth proportional to 122,758.08, 169,411.20 and 69,045.60 is: 95,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,758.08 : 169,411.20 = 69,045.60 : x
  2. Step 2: Convert to fraction form
    122,758.08/169,411.20 = 69,045.60/x
  3. Step 3: Cross multiply
    122,758.08x = 169,411.20 × 69,045.60
  4. Step 4: Simplify right side
    122,758.08x = 11,697,097,950.72
  5. Step 5: Solve for x
    x = 11,697,097,950.72/122,758.08
  6. Step 6: Final answer
    x = 95,285.77

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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.