Home / 126,328.68-189,511.74-42,061.32

Finding the Fourth Proportional to 126,328.68, 189,511.74 and 42,061.32

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Solution

The fourth proportional to 126,328.68, 189,511.74 and 42,061.32 is: 63,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,328.68 : 189,511.74 = 42,061.32 : x
  2. Step 2: Convert to fraction form
    126,328.68/189,511.74 = 42,061.32/x
  3. Step 3: Cross multiply
    126,328.68x = 189,511.74 × 42,061.32
  4. Step 4: Simplify right side
    126,328.68x = 7,971,113,939.90
  5. Step 5: Solve for x
    x = 7,971,113,939.90/126,328.68
  6. Step 6: Final answer
    x = 63,098.21

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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.