Home / 118,663.90-178,022.50-39,776.10

Finding the Fourth Proportional to 118,663.90, 178,022.50 and 39,776.10

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Solution

The fourth proportional to 118,663.90, 178,022.50 and 39,776.10 is: 59,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,663.90 : 178,022.50 = 39,776.10 : x
  2. Step 2: Convert to fraction form
    118,663.90/178,022.50 = 39,776.10/x
  3. Step 3: Cross multiply
    118,663.90x = 178,022.50 × 39,776.10
  4. Step 4: Simplify right side
    118,663.90x = 7,081,040,762.25
  5. Step 5: Solve for x
    x = 7,081,040,762.25/118,663.90
  6. Step 6: Final answer
    x = 59,673.08

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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.