Home / 136,543.12-204,879.58-61,686.16

Finding the Fourth Proportional to 136,543.12, 204,879.58 and 61,686.16

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Solution

The fourth proportional to 136,543.12, 204,879.58 and 61,686.16 is: 92,558.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,543.12 : 204,879.58 = 61,686.16 : x
  2. Step 2: Convert to fraction form
    136,543.12/204,879.58 = 61,686.16/x
  3. Step 3: Cross multiply
    136,543.12x = 204,879.58 × 61,686.16
  4. Step 4: Simplify right side
    136,543.12x = 12,638,233,886.20
  5. Step 5: Solve for x
    x = 12,638,233,886.20/136,543.12
  6. Step 6: Final answer
    x = 92,558.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.