Home / 145,633.41-218,449.89-45,802.31

Finding the Fourth Proportional to 145,633.41, 218,449.89 and 45,802.31

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Solution

The fourth proportional to 145,633.41, 218,449.89 and 45,802.31 is: 68,703.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,633.41 : 218,449.89 = 45,802.31 : x
  2. Step 2: Convert to fraction form
    145,633.41/218,449.89 = 45,802.31/x
  3. Step 3: Cross multiply
    145,633.41x = 218,449.89 × 45,802.31
  4. Step 4: Simplify right side
    145,633.41x = 10,005,508,489.00
  5. Step 5: Solve for x
    x = 10,005,508,489.00/145,633.41
  6. Step 6: Final answer
    x = 68,703.39

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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.