Home / 142,421.63-213,566.67-52,441.75

Finding the Fourth Proportional to 142,421.63, 213,566.67 and 52,441.75

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Solution

The fourth proportional to 142,421.63, 213,566.67 and 52,441.75 is: 78,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,421.63 : 213,566.67 = 52,441.75 : x
  2. Step 2: Convert to fraction form
    142,421.63/213,566.67 = 52,441.75/x
  3. Step 3: Cross multiply
    142,421.63x = 213,566.67 × 52,441.75
  4. Step 4: Simplify right side
    142,421.63x = 11,199,809,382.56
  5. Step 5: Solve for x
    x = 11,199,809,382.56/142,421.63
  6. Step 6: Final answer
    x = 78,638.40

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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.