Home / 142,303.79-213,478.73-43,784.75

Finding the Fourth Proportional to 142,303.79, 213,478.73 and 43,784.75

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Solution

The fourth proportional to 142,303.79, 213,478.73 and 43,784.75 is: 65,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,303.79 : 213,478.73 = 43,784.75 : x
  2. Step 2: Convert to fraction form
    142,303.79/213,478.73 = 43,784.75/x
  3. Step 3: Cross multiply
    142,303.79x = 213,478.73 × 43,784.75
  4. Step 4: Simplify right side
    142,303.79x = 9,347,112,823.37
  5. Step 5: Solve for x
    x = 9,347,112,823.37/142,303.79
  6. Step 6: Final answer
    x = 65,684.22

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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.