Home / 145,800.73-201,205.02-82,138.51

Finding the Fourth Proportional to 145,800.73, 201,205.02 and 82,138.51

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Solution

The fourth proportional to 145,800.73, 201,205.02 and 82,138.51 is: 113,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,800.73 : 201,205.02 = 82,138.51 : x
  2. Step 2: Convert to fraction form
    145,800.73/201,205.02 = 82,138.51/x
  3. Step 3: Cross multiply
    145,800.73x = 201,205.02 × 82,138.51
  4. Step 4: Simplify right side
    145,800.73x = 16,526,680,547.32
  5. Step 5: Solve for x
    x = 16,526,680,547.32/145,800.73
  6. Step 6: Final answer
    x = 113,351.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.