Home / 112,261.17-154,920.42-76,513.63

Finding the Fourth Proportional to 112,261.17, 154,920.42 and 76,513.63

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Solution

The fourth proportional to 112,261.17, 154,920.42 and 76,513.63 is: 105,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,261.17 : 154,920.42 = 76,513.63 : x
  2. Step 2: Convert to fraction form
    112,261.17/154,920.42 = 76,513.63/x
  3. Step 3: Cross multiply
    112,261.17x = 154,920.42 × 76,513.63
  4. Step 4: Simplify right side
    112,261.17x = 11,853,523,695.32
  5. Step 5: Solve for x
    x = 11,853,523,695.32/112,261.17
  6. Step 6: Final answer
    x = 105,588.81

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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.