Home / 102,741.03-141,742.58-64,478.25

Finding the Fourth Proportional to 102,741.03, 141,742.58 and 64,478.25

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Solution

The fourth proportional to 102,741.03, 141,742.58 and 64,478.25 is: 88,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,741.03 : 141,742.58 = 64,478.25 : x
  2. Step 2: Convert to fraction form
    102,741.03/141,742.58 = 64,478.25/x
  3. Step 3: Cross multiply
    102,741.03x = 141,742.58 × 64,478.25
  4. Step 4: Simplify right side
    102,741.03x = 9,139,313,186.49
  5. Step 5: Solve for x
    x = 9,139,313,186.49/102,741.03
  6. Step 6: Final answer
    x = 88,954.85

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1.5x scale

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.