Home / 130,879.90-196,350.60-42,130.07

Finding the Fourth Proportional to 130,879.90, 196,350.60 and 42,130.07

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Solution

The fourth proportional to 130,879.90, 196,350.60 and 42,130.07 is: 63,205.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,879.90 : 196,350.60 = 42,130.07 : x
  2. Step 2: Convert to fraction form
    130,879.90/196,350.60 = 42,130.07/x
  3. Step 3: Cross multiply
    130,879.90x = 196,350.60 × 42,130.07
  4. Step 4: Simplify right side
    130,879.90x = 8,272,265,118.74
  5. Step 5: Solve for x
    x = 8,272,265,118.74/130,879.90
  6. Step 6: Final answer
    x = 63,205.01

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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.