Home / 112,491.40-168,660.30-42,360.20

Finding the Fourth Proportional to 112,491.40, 168,660.30 and 42,360.20

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Solution

The fourth proportional to 112,491.40, 168,660.30 and 42,360.20 is: 63,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,491.40 : 168,660.30 = 42,360.20 : x
  2. Step 2: Convert to fraction form
    112,491.40/168,660.30 = 42,360.20/x
  3. Step 3: Cross multiply
    112,491.40x = 168,660.30 × 42,360.20
  4. Step 4: Simplify right side
    112,491.40x = 7,144,484,040.06
  5. Step 5: Solve for x
    x = 7,144,484,040.06/112,491.40
  6. Step 6: Final answer
    x = 63,511.38

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1.5x scale

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.