Home / 145,979.69-201,458.88-82,316.12

Finding the Fourth Proportional to 145,979.69, 201,458.88 and 82,316.12

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Solution

The fourth proportional to 145,979.69, 201,458.88 and 82,316.12 is: 113,600.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,979.69 : 201,458.88 = 82,316.12 : x
  2. Step 2: Convert to fraction form
    145,979.69/201,458.88 = 82,316.12/x
  3. Step 3: Cross multiply
    145,979.69x = 201,458.88 × 82,316.12
  4. Step 4: Simplify right side
    145,979.69x = 16,583,312,333.85
  5. Step 5: Solve for x
    x = 16,583,312,333.85/145,979.69
  6. Step 6: Final answer
    x = 113,600.14

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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.