Home / 118,669.16-163,810.68-77,848.86

Finding the Fourth Proportional to 118,669.16, 163,810.68 and 77,848.86

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Solution

The fourth proportional to 118,669.16, 163,810.68 and 77,848.86 is: 107,462.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,669.16 : 163,810.68 = 77,848.86 : x
  2. Step 2: Convert to fraction form
    118,669.16/163,810.68 = 77,848.86/x
  3. Step 3: Cross multiply
    118,669.16x = 163,810.68 × 77,848.86
  4. Step 4: Simplify right side
    118,669.16x = 12,752,474,693.82
  5. Step 5: Solve for x
    x = 12,752,474,693.82/118,669.16
  6. Step 6: Final answer
    x = 107,462.42

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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.