Home / 102,774.22-153,909.72-84,895.49

Finding the Fourth Proportional to 102,774.22, 153,909.72 and 84,895.49

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Solution

The fourth proportional to 102,774.22, 153,909.72 and 84,895.49 is: 127,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,774.22 : 153,909.72 = 84,895.49 : x
  2. Step 2: Convert to fraction form
    102,774.22/153,909.72 = 84,895.49/x
  3. Step 3: Cross multiply
    102,774.22x = 153,909.72 × 84,895.49
  4. Step 4: Simplify right side
    102,774.22x = 13,066,241,479.94
  5. Step 5: Solve for x
    x = 13,066,241,479.94/102,774.22
  6. Step 6: Final answer
    x = 127,135.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.