Home / 135,558.51-187,065.65-75,130.18

Finding the Fourth Proportional to 135,558.51, 187,065.65 and 75,130.18

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Solution

The fourth proportional to 135,558.51, 187,065.65 and 75,130.18 is: 103,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,558.51 : 187,065.65 = 75,130.18 : x
  2. Step 2: Convert to fraction form
    135,558.51/187,065.65 = 75,130.18/x
  3. Step 3: Cross multiply
    135,558.51x = 187,065.65 × 75,130.18
  4. Step 4: Simplify right side
    135,558.51x = 14,054,276,728.72
  5. Step 5: Solve for x
    x = 14,054,276,728.72/135,558.51
  6. Step 6: Final answer
    x = 103,676.83

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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.