Home / 154,048.59-212,584.65-86,066.52

Finding the Fourth Proportional to 154,048.59, 212,584.65 and 86,066.52

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Solution

The fourth proportional to 154,048.59, 212,584.65 and 86,066.52 is: 118,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,048.59 : 212,584.65 = 86,066.52 : x
  2. Step 2: Convert to fraction form
    154,048.59/212,584.65 = 86,066.52/x
  3. Step 3: Cross multiply
    154,048.59x = 212,584.65 × 86,066.52
  4. Step 4: Simplify right side
    154,048.59x = 18,296,421,030.92
  5. Step 5: Solve for x
    x = 18,296,421,030.92/154,048.59
  6. Step 6: Final answer
    x = 118,770.45

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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.