Home / 135,560.51-187,068.41-75,132.19

Finding the Fourth Proportional to 135,560.51, 187,068.41 and 75,132.19

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Solution

The fourth proportional to 135,560.51, 187,068.41 and 75,132.19 is: 103,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,560.51 : 187,068.41 = 75,132.19 : x
  2. Step 2: Convert to fraction form
    135,560.51/187,068.41 = 75,132.19/x
  3. Step 3: Cross multiply
    135,560.51x = 187,068.41 × 75,132.19
  4. Step 4: Simplify right side
    135,560.51x = 14,054,859,323.12
  5. Step 5: Solve for x
    x = 14,054,859,323.12/135,560.51
  6. Step 6: Final answer
    x = 103,679.60

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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.