Home / 135,097.92-186,347.52-81,344.16

Finding the Fourth Proportional to 135,097.92, 186,347.52 and 81,344.16

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Solution

The fourth proportional to 135,097.92, 186,347.52 and 81,344.16 is: 112,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,097.92 : 186,347.52 = 81,344.16 : x
  2. Step 2: Convert to fraction form
    135,097.92/186,347.52 = 81,344.16/x
  3. Step 3: Cross multiply
    135,097.92x = 186,347.52 × 81,344.16
  4. Step 4: Simplify right side
    135,097.92x = 15,158,282,482.48
  5. Step 5: Solve for x
    x = 15,158,282,482.48/135,097.92
  6. Step 6: Final answer
    x = 112,202.19

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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.