Home / 136,877.99-188,872.96-76,440.93

Finding the Fourth Proportional to 136,877.99, 188,872.96 and 76,440.93

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Solution

The fourth proportional to 136,877.99, 188,872.96 and 76,440.93 is: 105,478.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,877.99 : 188,872.96 = 76,440.93 : x
  2. Step 2: Convert to fraction form
    136,877.99/188,872.96 = 76,440.93/x
  3. Step 3: Cross multiply
    136,877.99x = 188,872.96 × 76,440.93
  4. Step 4: Simplify right side
    136,877.99x = 14,437,624,714.25
  5. Step 5: Solve for x
    x = 14,437,624,714.25/136,877.99
  6. Step 6: Final answer
    x = 105,478.06

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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.