Home / 142,330.18-213,322.64-104,539.84

Finding the Fourth Proportional to 142,330.18, 213,322.64 and 104,539.84

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Solution

The fourth proportional to 142,330.18, 213,322.64 and 104,539.84 is: 156,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,330.18 : 213,322.64 = 104,539.84 : x
  2. Step 2: Convert to fraction form
    142,330.18/213,322.64 = 104,539.84/x
  3. Step 3: Cross multiply
    142,330.18x = 213,322.64 × 104,539.84
  4. Step 4: Simplify right side
    142,330.18x = 22,300,714,392.63
  5. Step 5: Solve for x
    x = 22,300,714,392.63/142,330.18
  6. Step 6: Final answer
    x = 156,682.97

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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.