Home / 134,541-185,666.63-77,985.18

Finding the Fourth Proportional to 134,541, 185,666.63 and 77,985.18

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Solution

The fourth proportional to 134,541, 185,666.63 and 77,985.18 is: 107,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,541 : 185,666.63 = 77,985.18 : x
  2. Step 2: Convert to fraction form
    134,541/185,666.63 = 77,985.18/x
  3. Step 3: Cross multiply
    134,541x = 185,666.63 × 77,985.18
  4. Step 4: Simplify right side
    134,541x = 14,479,245,170.62
  5. Step 5: Solve for x
    x = 14,479,245,170.62/134,541
  6. Step 6: Final answer
    x = 107,619.57

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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.