Home / 154,071.68-212,597.58-86,080.10

Finding the Fourth Proportional to 154,071.68, 212,597.58 and 86,080.10

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Solution

The fourth proportional to 154,071.68, 212,597.58 and 86,080.10 is: 118,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,071.68 : 212,597.58 = 86,080.10 : x
  2. Step 2: Convert to fraction form
    154,071.68/212,597.58 = 86,080.10/x
  3. Step 3: Cross multiply
    154,071.68x = 212,597.58 × 86,080.10
  4. Step 4: Simplify right side
    154,071.68x = 18,300,420,946.16
  5. Step 5: Solve for x
    x = 18,300,420,946.16/154,071.68
  6. Step 6: Final answer
    x = 118,778.62

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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.