Home / 145,329.34-218,010.41-66,433.31

Finding the Fourth Proportional to 145,329.34, 218,010.41 and 66,433.31

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Solution

The fourth proportional to 145,329.34, 218,010.41 and 66,433.31 is: 99,657.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,329.34 : 218,010.41 = 66,433.31 : x
  2. Step 2: Convert to fraction form
    145,329.34/218,010.41 = 66,433.31/x
  3. Step 3: Cross multiply
    145,329.34x = 218,010.41 × 66,433.31
  4. Step 4: Simplify right side
    145,329.34x = 14,483,154,208.35
  5. Step 5: Solve for x
    x = 14,483,154,208.35/145,329.34
  6. Step 6: Final answer
    x = 99,657.47

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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.