Home / 142,425.25-213,638.34-53,654.92

Finding the Fourth Proportional to 142,425.25, 213,638.34 and 53,654.92

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Solution

The fourth proportional to 142,425.25, 213,638.34 and 53,654.92 is: 80,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,425.25 : 213,638.34 = 53,654.92 : x
  2. Step 2: Convert to fraction form
    142,425.25/213,638.34 = 53,654.92/x
  3. Step 3: Cross multiply
    142,425.25x = 213,638.34 × 53,654.92
  4. Step 4: Simplify right side
    142,425.25x = 11,462,748,041.63
  5. Step 5: Solve for x
    x = 11,462,748,041.63/142,425.25
  6. Step 6: Final answer
    x = 80,482.56

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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.