Home / 157,173.62-216,748.71-105,607.19

Finding the Fourth Proportional to 157,173.62, 216,748.71 and 105,607.19

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Solution

The fourth proportional to 157,173.62, 216,748.71 and 105,607.19 is: 145,636.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,173.62 : 216,748.71 = 105,607.19 : x
  2. Step 2: Convert to fraction form
    157,173.62/216,748.71 = 105,607.19/x
  3. Step 3: Cross multiply
    157,173.62x = 216,748.71 × 105,607.19
  4. Step 4: Simplify right side
    157,173.62x = 22,890,222,741.10
  5. Step 5: Solve for x
    x = 22,890,222,741.10/157,173.62
  6. Step 6: Final answer
    x = 145,636.55

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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.