Home / 146,931.84-220,181.76-86,898.42

Finding the Fourth Proportional to 146,931.84, 220,181.76 and 86,898.42

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Solution

The fourth proportional to 146,931.84, 220,181.76 and 86,898.42 is: 130,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,931.84 : 220,181.76 = 86,898.42 : x
  2. Step 2: Convert to fraction form
    146,931.84/220,181.76 = 86,898.42/x
  3. Step 3: Cross multiply
    146,931.84x = 220,181.76 × 86,898.42
  4. Step 4: Simplify right side
    146,931.84x = 19,133,447,056.82
  5. Step 5: Solve for x
    x = 19,133,447,056.82/146,931.84
  6. Step 6: Final answer
    x = 130,219.88

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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.