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Finding the Fourth Proportional to 113,400.80, 170,101.20 and 101,153.60

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Solution

The fourth proportional to 113,400.80, 170,101.20 and 101,153.60 is: 151,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,400.80 : 170,101.20 = 101,153.60 : x
  2. Step 2: Convert to fraction form
    113,400.80/170,101.20 = 101,153.60/x
  3. Step 3: Cross multiply
    113,400.80x = 170,101.20 × 101,153.60
  4. Step 4: Simplify right side
    113,400.80x = 17,206,348,744.32
  5. Step 5: Solve for x
    x = 17,206,348,744.32/113,400.80
  6. Step 6: Final answer
    x = 151,730.40

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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.