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Finding the Fourth Proportional to 169,113.60, 253,670.40 and 113,126.40

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Solution

The fourth proportional to 169,113.60, 253,670.40 and 113,126.40 is: 169,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,113.60 : 253,670.40 = 113,126.40 : x
  2. Step 2: Convert to fraction form
    169,113.60/253,670.40 = 113,126.40/x
  3. Step 3: Cross multiply
    169,113.60x = 253,670.40 × 113,126.40
  4. Step 4: Simplify right side
    169,113.60x = 28,696,819,138.56
  5. Step 5: Solve for x
    x = 28,696,819,138.56/169,113.60
  6. Step 6: Final answer
    x = 169,689.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.