Home / 130,303.20-195,872.40-121,058.40

Finding the Fourth Proportional to 130,303.20, 195,872.40 and 121,058.40

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Solution

The fourth proportional to 130,303.20, 195,872.40 and 121,058.40 is: 181,975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,303.20 : 195,872.40 = 121,058.40 : x
  2. Step 2: Convert to fraction form
    130,303.20/195,872.40 = 121,058.40/x
  3. Step 3: Cross multiply
    130,303.20x = 195,872.40 × 121,058.40
  4. Step 4: Simplify right side
    130,303.20x = 23,711,999,348.16
  5. Step 5: Solve for x
    x = 23,711,999,348.16/130,303.20
  6. Step 6: Final answer
    x = 181,975.57

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1.5x scale

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.