Home / 109,264.51-150,774.16-80,599.66

Finding the Fourth Proportional to 109,264.51, 150,774.16 and 80,599.66

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Solution

The fourth proportional to 109,264.51, 150,774.16 and 80,599.66 is: 111,219.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,264.51 : 150,774.16 = 80,599.66 : x
  2. Step 2: Convert to fraction form
    109,264.51/150,774.16 = 80,599.66/x
  3. Step 3: Cross multiply
    109,264.51x = 150,774.16 × 80,599.66
  4. Step 4: Simplify right side
    109,264.51x = 12,152,346,032.79
  5. Step 5: Solve for x
    x = 12,152,346,032.79/109,264.51
  6. Step 6: Final answer
    x = 111,219.52

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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.