Home / 187,365.84-281,159.40-69,119.76

Finding the Fourth Proportional to 187,365.84, 281,159.40 and 69,119.76

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Solution

The fourth proportional to 187,365.84, 281,159.40 and 69,119.76 is: 103,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,365.84 : 281,159.40 = 69,119.76 : x
  2. Step 2: Convert to fraction form
    187,365.84/281,159.40 = 69,119.76/x
  3. Step 3: Cross multiply
    187,365.84x = 281,159.40 × 69,119.76
  4. Step 4: Simplify right side
    187,365.84x = 19,433,670,249.74
  5. Step 5: Solve for x
    x = 19,433,670,249.74/187,365.84
  6. Step 6: Final answer
    x = 103,720.46

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1.5x scale

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.