Home / 145,631.18-218,475.94-45,816.50

Finding the Fourth Proportional to 145,631.18, 218,475.94 and 45,816.50

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Solution

The fourth proportional to 145,631.18, 218,475.94 and 45,816.50 is: 68,733.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,631.18 : 218,475.94 = 45,816.50 : x
  2. Step 2: Convert to fraction form
    145,631.18/218,475.94 = 45,816.50/x
  3. Step 3: Cross multiply
    145,631.18x = 218,475.94 × 45,816.50
  4. Step 4: Simplify right side
    145,631.18x = 10,009,802,905.01
  5. Step 5: Solve for x
    x = 10,009,802,905.01/145,631.18
  6. Step 6: Final answer
    x = 68,733.93

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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.