Home / 145,027.20-200,341.44-111,918.72

Finding the Fourth Proportional to 145,027.20, 200,341.44 and 111,918.72

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Solution

The fourth proportional to 145,027.20, 200,341.44 and 111,918.72 is: 154,605.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,027.20 : 200,341.44 = 111,918.72 : x
  2. Step 2: Convert to fraction form
    145,027.20/200,341.44 = 111,918.72/x
  3. Step 3: Cross multiply
    145,027.20x = 200,341.44 × 111,918.72
  4. Step 4: Simplify right side
    145,027.20x = 22,421,957,527.76
  5. Step 5: Solve for x
    x = 22,421,957,527.76/145,027.20
  6. Step 6: Final answer
    x = 154,605.19

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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.