Home / 142,099.30-213,289.08-75,539.98

Finding the Fourth Proportional to 142,099.30, 213,289.08 and 75,539.98

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Solution

The fourth proportional to 142,099.30, 213,289.08 and 75,539.98 is: 113,384.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,099.30 : 213,289.08 = 75,539.98 : x
  2. Step 2: Convert to fraction form
    142,099.30/213,289.08 = 75,539.98/x
  3. Step 3: Cross multiply
    142,099.30x = 213,289.08 × 75,539.98
  4. Step 4: Simplify right side
    142,099.30x = 16,111,852,837.42
  5. Step 5: Solve for x
    x = 16,111,852,837.42/142,099.30
  6. Step 6: Final answer
    x = 113,384.46

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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.