Home / 112,334.36-155,045.64-76,609.52

Finding the Fourth Proportional to 112,334.36, 155,045.64 and 76,609.52

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Solution

The fourth proportional to 112,334.36, 155,045.64 and 76,609.52 is: 105,737.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,334.36 : 155,045.64 = 76,609.52 : x
  2. Step 2: Convert to fraction form
    112,334.36/155,045.64 = 76,609.52/x
  3. Step 3: Cross multiply
    112,334.36x = 155,045.64 × 76,609.52
  4. Step 4: Simplify right side
    112,334.36x = 11,877,972,058.49
  5. Step 5: Solve for x
    x = 11,877,972,058.49/112,334.36
  6. Step 6: Final answer
    x = 105,737.66

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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.