Home / 157,019.18-235,439.55-107,159.68

Finding the Fourth Proportional to 157,019.18, 235,439.55 and 107,159.68

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Solution

The fourth proportional to 157,019.18, 235,439.55 and 107,159.68 is: 160,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,019.18 : 235,439.55 = 107,159.68 : x
  2. Step 2: Convert to fraction form
    157,019.18/235,439.55 = 107,159.68/x
  3. Step 3: Cross multiply
    157,019.18x = 235,439.55 × 107,159.68
  4. Step 4: Simplify right side
    157,019.18x = 25,229,626,837.34
  5. Step 5: Solve for x
    x = 25,229,626,837.34/157,019.18
  6. Step 6: Final answer
    x = 160,678.63

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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.