Home / 122,729.16-169,365.42-69,014.28

Finding the Fourth Proportional to 122,729.16, 169,365.42 and 69,014.28

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Solution

The fourth proportional to 122,729.16, 169,365.42 and 69,014.28 is: 95,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,729.16 : 169,365.42 = 69,014.28 : x
  2. Step 2: Convert to fraction form
    122,729.16/169,365.42 = 69,014.28/x
  3. Step 3: Cross multiply
    122,729.16x = 169,365.42 × 69,014.28
  4. Step 4: Simplify right side
    122,729.16x = 11,688,632,518.20
  5. Step 5: Solve for x
    x = 11,688,632,518.20/122,729.16
  6. Step 6: Final answer
    x = 95,239.24

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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.