Home / 151,879.93-209,437.31-130,440.66

Finding the Fourth Proportional to 151,879.93, 209,437.31 and 130,440.66

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Solution

The fourth proportional to 151,879.93, 209,437.31 and 130,440.66 is: 179,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,879.93 : 209,437.31 = 130,440.66 : x
  2. Step 2: Convert to fraction form
    151,879.93/209,437.31 = 130,440.66/x
  3. Step 3: Cross multiply
    151,879.93x = 209,437.31 × 130,440.66
  4. Step 4: Simplify right side
    151,879.93x = 27,319,142,159.86
  5. Step 5: Solve for x
    x = 27,319,142,159.86/151,879.93
  6. Step 6: Final answer
    x = 179,873.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.