Home / 137,921.85-190,332.30-77,492.44

Finding the Fourth Proportional to 137,921.85, 190,332.30 and 77,492.44

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Solution

The fourth proportional to 137,921.85, 190,332.30 and 77,492.44 is: 106,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,921.85 : 190,332.30 = 77,492.44 : x
  2. Step 2: Convert to fraction form
    137,921.85/190,332.30 = 77,492.44/x
  3. Step 3: Cross multiply
    137,921.85x = 190,332.30 × 77,492.44
  4. Step 4: Simplify right side
    137,921.85x = 14,749,314,337.81
  5. Step 5: Solve for x
    x = 14,749,314,337.81/137,921.85
  6. Step 6: Final answer
    x = 106,939.65

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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.