Home / 108,707.92-149,953.38-68,357.80

Finding the Fourth Proportional to 108,707.92, 149,953.38 and 68,357.80

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Solution

The fourth proportional to 108,707.92, 149,953.38 and 68,357.80 is: 94,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,707.92 : 149,953.38 = 68,357.80 : x
  2. Step 2: Convert to fraction form
    108,707.92/149,953.38 = 68,357.80/x
  3. Step 3: Cross multiply
    108,707.92x = 149,953.38 × 68,357.80
  4. Step 4: Simplify right side
    108,707.92x = 10,250,483,159.36
  5. Step 5: Solve for x
    x = 10,250,483,159.36/108,707.92
  6. Step 6: Final answer
    x = 94,293.80

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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.