Home / 118,278.65-163,228.40-64,566.53

Finding the Fourth Proportional to 118,278.65, 163,228.40 and 64,566.53

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Solution

The fourth proportional to 118,278.65, 163,228.40 and 64,566.53 is: 89,103.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,278.65 : 163,228.40 = 64,566.53 : x
  2. Step 2: Convert to fraction form
    118,278.65/163,228.40 = 64,566.53/x
  3. Step 3: Cross multiply
    118,278.65x = 163,228.40 × 64,566.53
  4. Step 4: Simplify right side
    118,278.65x = 10,539,090,246.48
  5. Step 5: Solve for x
    x = 10,539,090,246.48/118,278.65
  6. Step 6: Final answer
    x = 89,103.91

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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.