Home / 145,867.44-218,567.88-131,870.64

Finding the Fourth Proportional to 145,867.44, 218,567.88 and 131,870.64

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Solution

The fourth proportional to 145,867.44, 218,567.88 and 131,870.64 is: 197,595.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,867.44 : 218,567.88 = 131,870.64 : x
  2. Step 2: Convert to fraction form
    145,867.44/218,567.88 = 131,870.64/x
  3. Step 3: Cross multiply
    145,867.44x = 218,567.88 × 131,870.64
  4. Step 4: Simplify right side
    145,867.44x = 28,822,686,219.04
  5. Step 5: Solve for x
    x = 28,822,686,219.04/145,867.44
  6. Step 6: Final answer
    x = 197,595.06

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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.