Home / 130,218.48-196,303.74-121,538.45

Finding the Fourth Proportional to 130,218.48, 196,303.74 and 121,538.45

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Solution

The fourth proportional to 130,218.48, 196,303.74 and 121,538.45 is: 183,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,218.48 : 196,303.74 = 121,538.45 : x
  2. Step 2: Convert to fraction form
    130,218.48/196,303.74 = 121,538.45/x
  3. Step 3: Cross multiply
    130,218.48x = 196,303.74 × 121,538.45
  4. Step 4: Simplify right side
    130,218.48x = 23,858,452,323.79
  5. Step 5: Solve for x
    x = 23,858,452,323.79/130,218.48
  6. Step 6: Final answer
    x = 183,218.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.