Home / 125,460.04-173,215.92-77,764

Finding the Fourth Proportional to 125,460.04, 173,215.92 and 77,764

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Solution

The fourth proportional to 125,460.04, 173,215.92 and 77,764 is: 107,364.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,460.04 : 173,215.92 = 77,764 : x
  2. Step 2: Convert to fraction form
    125,460.04/173,215.92 = 77,764/x
  3. Step 3: Cross multiply
    125,460.04x = 173,215.92 × 77,764
  4. Step 4: Simplify right side
    125,460.04x = 13,469,962,802.88
  5. Step 5: Solve for x
    x = 13,469,962,802.88/125,460.04
  6. Step 6: Final answer
    x = 107,364.57

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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.