Home / 136,495.85-188,364.45-76,065.17

Finding the Fourth Proportional to 136,495.85, 188,364.45 and 76,065.17

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Solution

The fourth proportional to 136,495.85, 188,364.45 and 76,065.17 is: 104,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,495.85 : 188,364.45 = 76,065.17 : x
  2. Step 2: Convert to fraction form
    136,495.85/188,364.45 = 76,065.17/x
  3. Step 3: Cross multiply
    136,495.85x = 188,364.45 × 76,065.17
  4. Step 4: Simplify right side
    136,495.85x = 14,327,973,911.21
  5. Step 5: Solve for x
    x = 14,327,973,911.21/136,495.85
  6. Step 6: Final answer
    x = 104,970.03

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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.