Home / 118,393.20-163,355.76-70,637.28

Finding the Fourth Proportional to 118,393.20, 163,355.76 and 70,637.28

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Solution

The fourth proportional to 118,393.20, 163,355.76 and 70,637.28 is: 97,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,393.20 : 163,355.76 = 70,637.28 : x
  2. Step 2: Convert to fraction form
    118,393.20/163,355.76 = 70,637.28/x
  3. Step 3: Cross multiply
    118,393.20x = 163,355.76 × 70,637.28
  4. Step 4: Simplify right side
    118,393.20x = 11,539,006,558.73
  5. Step 5: Solve for x
    x = 11,539,006,558.73/118,393.20
  6. Step 6: Final answer
    x = 97,463.42

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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.