Home / 130,051.58-179,470.62-72,690.82

Finding the Fourth Proportional to 130,051.58, 179,470.62 and 72,690.82

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Solution

The fourth proportional to 130,051.58, 179,470.62 and 72,690.82 is: 100,313.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,051.58 : 179,470.62 = 72,690.82 : x
  2. Step 2: Convert to fraction form
    130,051.58/179,470.62 = 72,690.82/x
  3. Step 3: Cross multiply
    130,051.58x = 179,470.62 × 72,690.82
  4. Step 4: Simplify right side
    130,051.58x = 13,045,866,085.03
  5. Step 5: Solve for x
    x = 13,045,866,085.03/130,051.58
  6. Step 6: Final answer
    x = 100,313.02

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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.