Home / 213,143.40-294,132.06-117,643.19

Finding the Fourth Proportional to 213,143.40, 294,132.06 and 117,643.19

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Solution

The fourth proportional to 213,143.40, 294,132.06 and 117,643.19 is: 162,344.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,143.40 : 294,132.06 = 117,643.19 : x
  2. Step 2: Convert to fraction form
    213,143.40/294,132.06 = 117,643.19/x
  3. Step 3: Cross multiply
    213,143.40x = 294,132.06 × 117,643.19
  4. Step 4: Simplify right side
    213,143.40x = 34,602,632,349.01
  5. Step 5: Solve for x
    x = 34,602,632,349.01/213,143.40
  6. Step 6: Final answer
    x = 162,344.38

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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.