Home / 154,438.35-213,531.59-135,263.14

Finding the Fourth Proportional to 154,438.35, 213,531.59 and 135,263.14

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Solution

The fourth proportional to 154,438.35, 213,531.59 and 135,263.14 is: 187,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,438.35 : 213,531.59 = 135,263.14 : x
  2. Step 2: Convert to fraction form
    154,438.35/213,531.59 = 135,263.14/x
  3. Step 3: Cross multiply
    154,438.35x = 213,531.59 × 135,263.14
  4. Step 4: Simplify right side
    154,438.35x = 28,882,953,352.59
  5. Step 5: Solve for x
    x = 28,882,953,352.59/154,438.35
  6. Step 6: Final answer
    x = 187,019.31

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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.