Home / 116,768.62-161,111.02-71,430.04

Finding the Fourth Proportional to 116,768.62, 161,111.02 and 71,430.04

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Solution

The fourth proportional to 116,768.62, 161,111.02 and 71,430.04 is: 98,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,768.62 : 161,111.02 = 71,430.04 : x
  2. Step 2: Convert to fraction form
    116,768.62/161,111.02 = 71,430.04/x
  3. Step 3: Cross multiply
    116,768.62x = 161,111.02 × 71,430.04
  4. Step 4: Simplify right side
    116,768.62x = 11,508,166,603.04
  5. Step 5: Solve for x
    x = 11,508,166,603.04/116,768.62
  6. Step 6: Final answer
    x = 98,555.30

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1.5x scale

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.