Home / 142,304.79-213,480.23-43,785.75

Finding the Fourth Proportional to 142,304.79, 213,480.23 and 43,785.75

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Solution

The fourth proportional to 142,304.79, 213,480.23 and 43,785.75 is: 65,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,304.79 : 213,480.23 = 43,785.75 : x
  2. Step 2: Convert to fraction form
    142,304.79/213,480.23 = 43,785.75/x
  3. Step 3: Cross multiply
    142,304.79x = 213,480.23 × 43,785.75
  4. Step 4: Simplify right side
    142,304.79x = 9,347,391,980.72
  5. Step 5: Solve for x
    x = 9,347,391,980.72/142,304.79
  6. Step 6: Final answer
    x = 65,685.72

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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.