Home / 145,345.19-200,580.91-87,995.03

Finding the Fourth Proportional to 145,345.19, 200,580.91 and 87,995.03

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Solution

The fourth proportional to 145,345.19, 200,580.91 and 87,995.03 is: 121,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,345.19 : 200,580.91 = 87,995.03 : x
  2. Step 2: Convert to fraction form
    145,345.19/200,580.91 = 87,995.03/x
  3. Step 3: Cross multiply
    145,345.19x = 200,580.91 × 87,995.03
  4. Step 4: Simplify right side
    145,345.19x = 17,650,121,969.99
  5. Step 5: Solve for x
    x = 17,650,121,969.99/145,345.19
  6. Step 6: Final answer
    x = 121,435.89

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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.