Home / 154,001.22-212,519.42-86,019.18

Finding the Fourth Proportional to 154,001.22, 212,519.42 and 86,019.18

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Solution

The fourth proportional to 154,001.22, 212,519.42 and 86,019.18 is: 118,705.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,001.22 : 212,519.42 = 86,019.18 : x
  2. Step 2: Convert to fraction form
    154,001.22/212,519.42 = 86,019.18/x
  3. Step 3: Cross multiply
    154,001.22x = 212,519.42 × 86,019.18
  4. Step 4: Simplify right side
    154,001.22x = 18,280,746,457.52
  5. Step 5: Solve for x
    x = 18,280,746,457.52/154,001.22
  6. Step 6: Final answer
    x = 118,705.21

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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.