Home / 105,333.36-145,362.62-57,590.25

Finding the Fourth Proportional to 105,333.36, 145,362.62 and 57,590.25

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Solution

The fourth proportional to 105,333.36, 145,362.62 and 57,590.25 is: 79,475.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,333.36 : 145,362.62 = 57,590.25 : x
  2. Step 2: Convert to fraction form
    105,333.36/145,362.62 = 57,590.25/x
  3. Step 3: Cross multiply
    105,333.36x = 145,362.62 × 57,590.25
  4. Step 4: Simplify right side
    105,333.36x = 8,371,469,626.46
  5. Step 5: Solve for x
    x = 8,371,469,626.46/105,333.36
  6. Step 6: Final answer
    x = 79,475.96

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1.5x scale

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.