Home / 142,421.93-213,654.15-52,457.79

Finding the Fourth Proportional to 142,421.93, 213,654.15 and 52,457.79

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Solution

The fourth proportional to 142,421.93, 213,654.15 and 52,457.79 is: 78,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,421.93 : 213,654.15 = 52,457.79 : x
  2. Step 2: Convert to fraction form
    142,421.93/213,654.15 = 52,457.79/x
  3. Step 3: Cross multiply
    142,421.93x = 213,654.15 × 52,457.79
  4. Step 4: Simplify right side
    142,421.93x = 11,207,824,533.33
  5. Step 5: Solve for x
    x = 11,207,824,533.33/142,421.93
  6. Step 6: Final answer
    x = 78,694.52

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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.