Home / 145,580.10-218,296.31-66,626.70

Finding the Fourth Proportional to 145,580.10, 218,296.31 and 66,626.70

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Solution

The fourth proportional to 145,580.10, 218,296.31 and 66,626.70 is: 99,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,580.10 : 218,296.31 = 66,626.70 : x
  2. Step 2: Convert to fraction form
    145,580.10/218,296.31 = 66,626.70/x
  3. Step 3: Cross multiply
    145,580.10x = 218,296.31 × 66,626.70
  4. Step 4: Simplify right side
    145,580.10x = 14,544,362,424.34
  5. Step 5: Solve for x
    x = 14,544,362,424.34/145,580.10
  6. Step 6: Final answer
    x = 99,906.25

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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.