Home / 108,109.56-149,151.66-62,771.40

Finding the Fourth Proportional to 108,109.56, 149,151.66 and 62,771.40

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Solution

The fourth proportional to 108,109.56, 149,151.66 and 62,771.40 is: 86,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,109.56 : 149,151.66 = 62,771.40 : x
  2. Step 2: Convert to fraction form
    108,109.56/149,151.66 = 62,771.40/x
  3. Step 3: Cross multiply
    108,109.56x = 149,151.66 × 62,771.40
  4. Step 4: Simplify right side
    108,109.56x = 9,362,458,510.52
  5. Step 5: Solve for x
    x = 9,362,458,510.52/108,109.56
  6. Step 6: Final answer
    x = 86,601.58

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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.