Home / 151,432.52-208,975.95-83,448

Finding the Fourth Proportional to 151,432.52, 208,975.95 and 83,448

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Solution

The fourth proportional to 151,432.52, 208,975.95 and 83,448 is: 115,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,432.52 : 208,975.95 = 83,448 : x
  2. Step 2: Convert to fraction form
    151,432.52/208,975.95 = 83,448/x
  3. Step 3: Cross multiply
    151,432.52x = 208,975.95 × 83,448
  4. Step 4: Simplify right side
    151,432.52x = 17,438,625,075.60
  5. Step 5: Solve for x
    x = 17,438,625,075.60/151,432.52
  6. Step 6: Final answer
    x = 115,157.73

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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.