Home / 210,232.47-290,019.91-137,603.42

Finding the Fourth Proportional to 210,232.47, 290,019.91 and 137,603.42

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Solution

The fourth proportional to 210,232.47, 290,019.91 and 137,603.42 is: 189,826.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,232.47 : 290,019.91 = 137,603.42 : x
  2. Step 2: Convert to fraction form
    210,232.47/290,019.91 = 137,603.42/x
  3. Step 3: Cross multiply
    210,232.47x = 290,019.91 × 137,603.42
  4. Step 4: Simplify right side
    210,232.47x = 39,907,729,345.98
  5. Step 5: Solve for x
    x = 39,907,729,345.98/210,232.47
  6. Step 6: Final answer
    x = 189,826.67

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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.