Home / 142,362.62-196,454.93-85,011.58

Finding the Fourth Proportional to 142,362.62, 196,454.93 and 85,011.58

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Solution

The fourth proportional to 142,362.62, 196,454.93 and 85,011.58 is: 117,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,362.62 : 196,454.93 = 85,011.58 : x
  2. Step 2: Convert to fraction form
    142,362.62/196,454.93 = 85,011.58/x
  3. Step 3: Cross multiply
    142,362.62x = 196,454.93 × 85,011.58
  4. Step 4: Simplify right side
    142,362.62x = 16,700,943,998.09
  5. Step 5: Solve for x
    x = 16,700,943,998.09/142,362.62
  6. Step 6: Final answer
    x = 117,312.70

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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.