Home / 142,109.21-213,117.63-47,313.92

Finding the Fourth Proportional to 142,109.21, 213,117.63 and 47,313.92

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Solution

The fourth proportional to 142,109.21, 213,117.63 and 47,313.92 is: 70,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,109.21 : 213,117.63 = 47,313.92 : x
  2. Step 2: Convert to fraction form
    142,109.21/213,117.63 = 47,313.92/x
  3. Step 3: Cross multiply
    142,109.21x = 213,117.63 × 47,313.92
  4. Step 4: Simplify right side
    142,109.21x = 10,083,431,117.92
  5. Step 5: Solve for x
    x = 10,083,431,117.92/142,109.21
  6. Step 6: Final answer
    x = 70,955.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.