Home / 154,110.60-212,668.40-86,127.86

Finding the Fourth Proportional to 154,110.60, 212,668.40 and 86,127.86

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Solution

The fourth proportional to 154,110.60, 212,668.40 and 86,127.86 is: 118,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,110.60 : 212,668.40 = 86,127.86 : x
  2. Step 2: Convert to fraction form
    154,110.60/212,668.40 = 86,127.86/x
  3. Step 3: Cross multiply
    154,110.60x = 212,668.40 × 86,127.86
  4. Step 4: Simplify right side
    154,110.60x = 18,316,674,181.62
  5. Step 5: Solve for x
    x = 18,316,674,181.62/154,110.60
  6. Step 6: Final answer
    x = 118,854.08

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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.