Home / 112,461.40-168,497.70-72,998.20

Finding the Fourth Proportional to 112,461.40, 168,497.70 and 72,998.20

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Solution

The fourth proportional to 112,461.40, 168,497.70 and 72,998.20 is: 109,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,461.40 : 168,497.70 = 72,998.20 : x
  2. Step 2: Convert to fraction form
    112,461.40/168,497.70 = 72,998.20/x
  3. Step 3: Cross multiply
    112,461.40x = 168,497.70 × 72,998.20
  4. Step 4: Simplify right side
    112,461.40x = 12,300,028,804.14
  5. Step 5: Solve for x
    x = 12,300,028,804.14/112,461.40
  6. Step 6: Final answer
    x = 109,371.12

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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.