Home / 157,120.39-235,681.07-38,791.74

Finding the Fourth Proportional to 157,120.39, 235,681.07 and 38,791.74

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Solution

The fourth proportional to 157,120.39, 235,681.07 and 38,791.74 is: 58,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,120.39 : 235,681.07 = 38,791.74 : x
  2. Step 2: Convert to fraction form
    157,120.39/235,681.07 = 38,791.74/x
  3. Step 3: Cross multiply
    157,120.39x = 235,681.07 × 38,791.74
  4. Step 4: Simplify right side
    157,120.39x = 9,142,478,790.36
  5. Step 5: Solve for x
    x = 9,142,478,790.36/157,120.39
  6. Step 6: Final answer
    x = 58,187.73

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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.