Home / 445,565.40-668,348.10-130,054.20

Finding the Fourth Proportional to 445,565.40, 668,348.10 and 130,054.20

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Solution

The fourth proportional to 445,565.40, 668,348.10 and 130,054.20 is: 195,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,565.40 : 668,348.10 = 130,054.20 : x
  2. Step 2: Convert to fraction form
    445,565.40/668,348.10 = 130,054.20/x
  3. Step 3: Cross multiply
    445,565.40x = 668,348.10 × 130,054.20
  4. Step 4: Simplify right side
    445,565.40x = 86,921,477,467.02
  5. Step 5: Solve for x
    x = 86,921,477,467.02/445,565.40
  6. Step 6: Final answer
    x = 195,081.30

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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.