Home / 158,080.56-218,148.10-86,460.36

Finding the Fourth Proportional to 158,080.56, 218,148.10 and 86,460.36

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Solution

The fourth proportional to 158,080.56, 218,148.10 and 86,460.36 is: 119,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,080.56 : 218,148.10 = 86,460.36 : x
  2. Step 2: Convert to fraction form
    158,080.56/218,148.10 = 86,460.36/x
  3. Step 3: Cross multiply
    158,080.56x = 218,148.10 × 86,460.36
  4. Step 4: Simplify right side
    158,080.56x = 18,861,163,259.32
  5. Step 5: Solve for x
    x = 18,861,163,259.32/158,080.56
  6. Step 6: Final answer
    x = 119,313.62

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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.