Home / 136,316.64-188,111.34-75,885.51

Finding the Fourth Proportional to 136,316.64, 188,111.34 and 75,885.51

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Solution

The fourth proportional to 136,316.64, 188,111.34 and 75,885.51 is: 104,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,316.64 : 188,111.34 = 75,885.51 : x
  2. Step 2: Convert to fraction form
    136,316.64/188,111.34 = 75,885.51/x
  3. Step 3: Cross multiply
    136,316.64x = 188,111.34 × 75,885.51
  4. Step 4: Simplify right side
    136,316.64x = 14,274,924,972.68
  5. Step 5: Solve for x
    x = 14,274,924,972.68/136,316.64
  6. Step 6: Final answer
    x = 104,718.87

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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.