Home / 138,741.34-191,442.46-84,265.17

Finding the Fourth Proportional to 138,741.34, 191,442.46 and 84,265.17

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Solution

The fourth proportional to 138,741.34, 191,442.46 and 84,265.17 is: 116,273.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,741.34 : 191,442.46 = 84,265.17 : x
  2. Step 2: Convert to fraction form
    138,741.34/191,442.46 = 84,265.17/x
  3. Step 3: Cross multiply
    138,741.34x = 191,442.46 × 84,265.17
  4. Step 4: Simplify right side
    138,741.34x = 16,131,931,038.15
  5. Step 5: Solve for x
    x = 16,131,931,038.15/138,741.34
  6. Step 6: Final answer
    x = 116,273.42

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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.