Home / 135,555.10-187,066.04-75,134.82

Finding the Fourth Proportional to 135,555.10, 187,066.04 and 75,134.82

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Solution

The fourth proportional to 135,555.10, 187,066.04 and 75,134.82 is: 103,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,555.10 : 187,066.04 = 75,134.82 : x
  2. Step 2: Convert to fraction form
    135,555.10/187,066.04 = 75,134.82/x
  3. Step 3: Cross multiply
    135,555.10x = 187,066.04 × 75,134.82
  4. Step 4: Simplify right side
    135,555.10x = 14,055,173,243.51
  5. Step 5: Solve for x
    x = 14,055,173,243.51/135,555.10
  6. Step 6: Final answer
    x = 103,686.05

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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.