Home / 142,420.35-196,495.68-94,681.78

Finding the Fourth Proportional to 142,420.35, 196,495.68 and 94,681.78

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Solution

The fourth proportional to 142,420.35, 196,495.68 and 94,681.78 is: 130,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,420.35 : 196,495.68 = 94,681.78 : x
  2. Step 2: Convert to fraction form
    142,420.35/196,495.68 = 94,681.78/x
  3. Step 3: Cross multiply
    142,420.35x = 196,495.68 × 94,681.78
  4. Step 4: Simplify right side
    142,420.35x = 18,604,560,744.71
  5. Step 5: Solve for x
    x = 18,604,560,744.71/142,420.35
  6. Step 6: Final answer
    x = 130,631.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.