Home / 129,876.90-179,253.44-77,492.24

Finding the Fourth Proportional to 129,876.90, 179,253.44 and 77,492.24

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Solution

The fourth proportional to 129,876.90, 179,253.44 and 77,492.24 is: 106,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,876.90 : 179,253.44 = 77,492.24 : x
  2. Step 2: Convert to fraction form
    129,876.90/179,253.44 = 77,492.24/x
  3. Step 3: Cross multiply
    129,876.90x = 179,253.44 × 77,492.24
  4. Step 4: Simplify right side
    129,876.90x = 13,890,751,362.40
  5. Step 5: Solve for x
    x = 13,890,751,362.40/129,876.90
  6. Step 6: Final answer
    x = 106,953.21

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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.