Home / 163,639.85-245,485.89-57,054.45

Finding the Fourth Proportional to 163,639.85, 245,485.89 and 57,054.45

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Solution

The fourth proportional to 163,639.85, 245,485.89 and 57,054.45 is: 85,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,639.85 : 245,485.89 = 57,054.45 : x
  2. Step 2: Convert to fraction form
    163,639.85/245,485.89 = 57,054.45/x
  3. Step 3: Cross multiply
    163,639.85x = 245,485.89 × 57,054.45
  4. Step 4: Simplify right side
    163,639.85x = 14,006,062,666.85
  5. Step 5: Solve for x
    x = 14,006,062,666.85/163,639.85
  6. Step 6: Final answer
    x = 85,590.78

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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.