Home / 135,333.34-186,760.40-74,908.18

Finding the Fourth Proportional to 135,333.34, 186,760.40 and 74,908.18

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Solution

The fourth proportional to 135,333.34, 186,760.40 and 74,908.18 is: 103,373.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,333.34 : 186,760.40 = 74,908.18 : x
  2. Step 2: Convert to fraction form
    135,333.34/186,760.40 = 74,908.18/x
  3. Step 3: Cross multiply
    135,333.34x = 186,760.40 × 74,908.18
  4. Step 4: Simplify right side
    135,333.34x = 13,989,881,660.07
  5. Step 5: Solve for x
    x = 13,989,881,660.07/135,333.34
  6. Step 6: Final answer
    x = 103,373.50

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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.