Home / 134,838.42-185,998.44-86,423.10

Finding the Fourth Proportional to 134,838.42, 185,998.44 and 86,423.10

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Solution

The fourth proportional to 134,838.42, 185,998.44 and 86,423.10 is: 119,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,838.42 : 185,998.44 = 86,423.10 : x
  2. Step 2: Convert to fraction form
    134,838.42/185,998.44 = 86,423.10/x
  3. Step 3: Cross multiply
    134,838.42x = 185,998.44 × 86,423.10
  4. Step 4: Simplify right side
    134,838.42x = 16,074,561,779.96
  5. Step 5: Solve for x
    x = 16,074,561,779.96/134,838.42
  6. Step 6: Final answer
    x = 119,213.51

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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.