Home / 142,195.48-212,665.80-126,510.58

Finding the Fourth Proportional to 142,195.48, 212,665.80 and 126,510.58

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Solution

The fourth proportional to 142,195.48, 212,665.80 and 126,510.58 is: 189,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,195.48 : 212,665.80 = 126,510.58 : x
  2. Step 2: Convert to fraction form
    142,195.48/212,665.80 = 126,510.58/x
  3. Step 3: Cross multiply
    142,195.48x = 212,665.80 × 126,510.58
  4. Step 4: Simplify right side
    142,195.48x = 26,904,474,444.41
  5. Step 5: Solve for x
    x = 26,904,474,444.41/142,195.48
  6. Step 6: Final answer
    x = 189,207.67

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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.