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Finding the Fourth Proportional to 142,403.60, 213,605.40 and 37,233.20

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Solution

The fourth proportional to 142,403.60, 213,605.40 and 37,233.20 is: 55,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,403.60 : 213,605.40 = 37,233.20 : x
  2. Step 2: Convert to fraction form
    142,403.60/213,605.40 = 37,233.20/x
  3. Step 3: Cross multiply
    142,403.60x = 213,605.40 × 37,233.20
  4. Step 4: Simplify right side
    142,403.60x = 7,953,212,579.28
  5. Step 5: Solve for x
    x = 7,953,212,579.28/142,403.60
  6. Step 6: Final answer
    x = 55,849.80

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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.