Home / 145,055.04-217,159.94-107,780.34

Finding the Fourth Proportional to 145,055.04, 217,159.94 and 107,780.34

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Solution

The fourth proportional to 145,055.04, 217,159.94 and 107,780.34 is: 161,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,055.04 : 217,159.94 = 107,780.34 : x
  2. Step 2: Convert to fraction form
    145,055.04/217,159.94 = 107,780.34/x
  3. Step 3: Cross multiply
    145,055.04x = 217,159.94 × 107,780.34
  4. Step 4: Simplify right side
    145,055.04x = 23,405,572,167.58
  5. Step 5: Solve for x
    x = 23,405,572,167.58/145,055.04
  6. Step 6: Final answer
    x = 161,356.49

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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.