Home / 126,889.36-190,338.70-42,652.40

Finding the Fourth Proportional to 126,889.36, 190,338.70 and 42,652.40

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Solution

The fourth proportional to 126,889.36, 190,338.70 and 42,652.40 is: 63,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,889.36 : 190,338.70 = 42,652.40 : x
  2. Step 2: Convert to fraction form
    126,889.36/190,338.70 = 42,652.40/x
  3. Step 3: Cross multiply
    126,889.36x = 190,338.70 × 42,652.40
  4. Step 4: Simplify right side
    126,889.36x = 8,118,402,367.88
  5. Step 5: Solve for x
    x = 8,118,402,367.88/126,889.36
  6. Step 6: Final answer
    x = 63,980.17

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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.