Home / 135,709.17-187,259.25-81,248.29

Finding the Fourth Proportional to 135,709.17, 187,259.25 and 81,248.29

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Solution

The fourth proportional to 135,709.17, 187,259.25 and 81,248.29 is: 112,111.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,709.17 : 187,259.25 = 81,248.29 : x
  2. Step 2: Convert to fraction form
    135,709.17/187,259.25 = 81,248.29/x
  3. Step 3: Cross multiply
    135,709.17x = 187,259.25 × 81,248.29
  4. Step 4: Simplify right side
    135,709.17x = 15,214,493,116.01
  5. Step 5: Solve for x
    x = 15,214,493,116.01/135,709.17
  6. Step 6: Final answer
    x = 112,111.02

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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.