Home / 136,073.46-187,782.75-74,822.88

Finding the Fourth Proportional to 136,073.46, 187,782.75 and 74,822.88

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Solution

The fourth proportional to 136,073.46, 187,782.75 and 74,822.88 is: 103,256.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,073.46 : 187,782.75 = 74,822.88 : x
  2. Step 2: Convert to fraction form
    136,073.46/187,782.75 = 74,822.88/x
  3. Step 3: Cross multiply
    136,073.46x = 187,782.75 × 74,822.88
  4. Step 4: Simplify right side
    136,073.46x = 14,050,446,873.51
  5. Step 5: Solve for x
    x = 14,050,446,873.51/136,073.46
  6. Step 6: Final answer
    x = 103,256.33

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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.