Home / 145,412.09-218,118.14-45,572.27

Finding the Fourth Proportional to 145,412.09, 218,118.14 and 45,572.27

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Solution

The fourth proportional to 145,412.09, 218,118.14 and 45,572.27 is: 68,358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,412.09 : 218,118.14 = 45,572.27 : x
  2. Step 2: Convert to fraction form
    145,412.09/218,118.14 = 45,572.27/x
  3. Step 3: Cross multiply
    145,412.09x = 218,118.14 × 45,572.27
  4. Step 4: Simplify right side
    145,412.09x = 9,940,138,767.98
  5. Step 5: Solve for x
    x = 9,940,138,767.98/145,412.09
  6. Step 6: Final answer
    x = 68,358.41

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1.5x scale

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.