Home / 151,130.61-208,552.19-83,136.65

Finding the Fourth Proportional to 151,130.61, 208,552.19 and 83,136.65

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Solution

The fourth proportional to 151,130.61, 208,552.19 and 83,136.65 is: 114,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,130.61 : 208,552.19 = 83,136.65 : x
  2. Step 2: Convert to fraction form
    151,130.61/208,552.19 = 83,136.65/x
  3. Step 3: Cross multiply
    151,130.61x = 208,552.19 × 83,136.65
  4. Step 4: Simplify right side
    151,130.61x = 17,338,328,968.32
  5. Step 5: Solve for x
    x = 17,338,328,968.32/151,130.61
  6. Step 6: Final answer
    x = 114,724.14

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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.