Home / 125,039.81-172,635.44-111,587.96

Finding the Fourth Proportional to 125,039.81, 172,635.44 and 111,587.96

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Solution

The fourth proportional to 125,039.81, 172,635.44 and 111,587.96 is: 154,063.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,039.81 : 172,635.44 = 111,587.96 : x
  2. Step 2: Convert to fraction form
    125,039.81/172,635.44 = 111,587.96/x
  3. Step 3: Cross multiply
    125,039.81x = 172,635.44 × 111,587.96
  4. Step 4: Simplify right side
    125,039.81x = 19,264,035,152.19
  5. Step 5: Solve for x
    x = 19,264,035,152.19/125,039.81
  6. Step 6: Final answer
    x = 154,063.22

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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.