Home / 126,347.05-189,456.56-42,077.67

Finding the Fourth Proportional to 126,347.05, 189,456.56 and 42,077.67

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Solution

The fourth proportional to 126,347.05, 189,456.56 and 42,077.67 is: 63,095.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,347.05 : 189,456.56 = 42,077.67 : x
  2. Step 2: Convert to fraction form
    126,347.05/189,456.56 = 42,077.67/x
  3. Step 3: Cross multiply
    126,347.05x = 189,456.56 × 42,077.67
  4. Step 4: Simplify right side
    126,347.05x = 7,971,890,088.36
  5. Step 5: Solve for x
    x = 7,971,890,088.36/126,347.05
  6. Step 6: Final answer
    x = 63,095.18

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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.