Home / 136,601.12-188,403.56-121,303.76

Finding the Fourth Proportional to 136,601.12, 188,403.56 and 121,303.76

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Solution

The fourth proportional to 136,601.12, 188,403.56 and 121,303.76 is: 167,305.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,601.12 : 188,403.56 = 121,303.76 : x
  2. Step 2: Convert to fraction form
    136,601.12/188,403.56 = 121,303.76/x
  3. Step 3: Cross multiply
    136,601.12x = 188,403.56 × 121,303.76
  4. Step 4: Simplify right side
    136,601.12x = 22,854,060,225.39
  5. Step 5: Solve for x
    x = 22,854,060,225.39/136,601.12
  6. Step 6: Final answer
    x = 167,305.07

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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.