Home / 151,629.53-209,248.74-83,646.65

Finding the Fourth Proportional to 151,629.53, 209,248.74 and 83,646.65

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Solution

The fourth proportional to 151,629.53, 209,248.74 and 83,646.65 is: 115,432.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,629.53 : 209,248.74 = 83,646.65 : x
  2. Step 2: Convert to fraction form
    151,629.53/209,248.74 = 83,646.65/x
  3. Step 3: Cross multiply
    151,629.53x = 209,248.74 × 83,646.65
  4. Step 4: Simplify right side
    151,629.53x = 17,502,956,640.84
  5. Step 5: Solve for x
    x = 17,502,956,640.84/151,629.53
  6. Step 6: Final answer
    x = 115,432.38

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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.