Home / 100,688.81-151,011.93-29,592.15

Finding the Fourth Proportional to 100,688.81, 151,011.93 and 29,592.15

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Solution

The fourth proportional to 100,688.81, 151,011.93 and 29,592.15 is: 44,381.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,688.81 : 151,011.93 = 29,592.15 : x
  2. Step 2: Convert to fraction form
    100,688.81/151,011.93 = 29,592.15/x
  3. Step 3: Cross multiply
    100,688.81x = 151,011.93 × 29,592.15
  4. Step 4: Simplify right side
    100,688.81x = 4,468,767,912.01
  5. Step 5: Solve for x
    x = 4,468,767,912.01/100,688.81
  6. Step 6: Final answer
    x = 44,381.97

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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.