Home / 154,260.96-212,870.38-86,284.16

Finding the Fourth Proportional to 154,260.96, 212,870.38 and 86,284.16

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Solution

The fourth proportional to 154,260.96, 212,870.38 and 86,284.16 is: 119,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,260.96 : 212,870.38 = 86,284.16 : x
  2. Step 2: Convert to fraction form
    154,260.96/212,870.38 = 86,284.16/x
  3. Step 3: Cross multiply
    154,260.96x = 212,870.38 × 86,284.16
  4. Step 4: Simplify right side
    154,260.96x = 18,367,341,927.18
  5. Step 5: Solve for x
    x = 18,367,341,927.18/154,260.96
  6. Step 6: Final answer
    x = 119,066.69

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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.