Home / 134,742.10-185,943.98-74,316.64

Finding the Fourth Proportional to 134,742.10, 185,943.98 and 74,316.64

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Solution

The fourth proportional to 134,742.10, 185,943.98 and 74,316.64 is: 102,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,742.10 : 185,943.98 = 74,316.64 : x
  2. Step 2: Convert to fraction form
    134,742.10/185,943.98 = 74,316.64/x
  3. Step 3: Cross multiply
    134,742.10x = 185,943.98 × 74,316.64
  4. Step 4: Simplify right side
    134,742.10x = 13,818,731,821.83
  5. Step 5: Solve for x
    x = 13,818,731,821.83/134,742.10
  6. Step 6: Final answer
    x = 102,556.90

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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.