Home / 163,440.32-245,174.63-45,111.69

Finding the Fourth Proportional to 163,440.32, 245,174.63 and 45,111.69

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Solution

The fourth proportional to 163,440.32, 245,174.63 and 45,111.69 is: 67,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,440.32 : 245,174.63 = 45,111.69 : x
  2. Step 2: Convert to fraction form
    163,440.32/245,174.63 = 45,111.69/x
  3. Step 3: Cross multiply
    163,440.32x = 245,174.63 × 45,111.69
  4. Step 4: Simplify right side
    163,440.32x = 11,060,241,678.87
  5. Step 5: Solve for x
    x = 11,060,241,678.87/163,440.32
  6. Step 6: Final answer
    x = 67,671.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.