Home / 112,341.56-155,094.63-77,936

Finding the Fourth Proportional to 112,341.56, 155,094.63 and 77,936

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Solution

The fourth proportional to 112,341.56, 155,094.63 and 77,936 is: 107,595.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,341.56 : 155,094.63 = 77,936 : x
  2. Step 2: Convert to fraction form
    112,341.56/155,094.63 = 77,936/x
  3. Step 3: Cross multiply
    112,341.56x = 155,094.63 × 77,936
  4. Step 4: Simplify right side
    112,341.56x = 12,087,455,083.68
  5. Step 5: Solve for x
    x = 12,087,455,083.68/112,341.56
  6. Step 6: Final answer
    x = 107,595.58

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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.