Home / 134,645.10-185,811.54-74,218.08

Finding the Fourth Proportional to 134,645.10, 185,811.54 and 74,218.08

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Solution

The fourth proportional to 134,645.10, 185,811.54 and 74,218.08 is: 102,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,645.10 : 185,811.54 = 74,218.08 : x
  2. Step 2: Convert to fraction form
    134,645.10/185,811.54 = 74,218.08/x
  3. Step 3: Cross multiply
    134,645.10x = 185,811.54 × 74,218.08
  4. Step 4: Simplify right side
    134,645.10x = 13,790,575,740.64
  5. Step 5: Solve for x
    x = 13,790,575,740.64/134,645.10
  6. Step 6: Final answer
    x = 102,421.67

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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.