Home / 126,888.36-190,337.20-42,651.40

Finding the Fourth Proportional to 126,888.36, 190,337.20 and 42,651.40

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Solution

The fourth proportional to 126,888.36, 190,337.20 and 42,651.40 is: 63,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,888.36 : 190,337.20 = 42,651.40 : x
  2. Step 2: Convert to fraction form
    126,888.36/190,337.20 = 42,651.40/x
  3. Step 3: Cross multiply
    126,888.36x = 190,337.20 × 42,651.40
  4. Step 4: Simplify right side
    126,888.36x = 8,118,148,052.08
  5. Step 5: Solve for x
    x = 8,118,148,052.08/126,888.36
  6. Step 6: Final answer
    x = 63,978.67

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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.