Home / 130,306.59-196,436.34-121,626.59

Finding the Fourth Proportional to 130,306.59, 196,436.34 and 121,626.59

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Solution

The fourth proportional to 130,306.59, 196,436.34 and 121,626.59 is: 183,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,306.59 : 196,436.34 = 121,626.59 : x
  2. Step 2: Convert to fraction form
    130,306.59/196,436.34 = 121,626.59/x
  3. Step 3: Cross multiply
    130,306.59x = 196,436.34 × 121,626.59
  4. Step 4: Simplify right side
    130,306.59x = 23,891,881,756.58
  5. Step 5: Solve for x
    x = 23,891,881,756.58/130,306.59
  6. Step 6: Final answer
    x = 183,351.30

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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.