Home / 103,626.40-143,004.64-61,187.64

Finding the Fourth Proportional to 103,626.40, 143,004.64 and 61,187.64

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Solution

The fourth proportional to 103,626.40, 143,004.64 and 61,187.64 is: 84,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626.40 : 143,004.64 = 61,187.64 : x
  2. Step 2: Convert to fraction form
    103,626.40/143,004.64 = 61,187.64/x
  3. Step 3: Cross multiply
    103,626.40x = 143,004.64 × 61,187.64
  4. Step 4: Simplify right side
    103,626.40x = 8,750,116,430.65
  5. Step 5: Solve for x
    x = 8,750,116,430.65/103,626.40
  6. Step 6: Final answer
    x = 84,439.07

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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.