Home / 154,047.60-212,583.28-86,065.52

Finding the Fourth Proportional to 154,047.60, 212,583.28 and 86,065.52

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Solution

The fourth proportional to 154,047.60, 212,583.28 and 86,065.52 is: 118,769.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.60 : 212,583.28 = 86,065.52 : x
  2. Step 2: Convert to fraction form
    154,047.60/212,583.28 = 86,065.52/x
  3. Step 3: Cross multiply
    154,047.60x = 212,583.28 × 86,065.52
  4. Step 4: Simplify right side
    154,047.60x = 18,296,090,536.51
  5. Step 5: Solve for x
    x = 18,296,090,536.51/154,047.60
  6. Step 6: Final answer
    x = 118,769.07

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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.