Home / 151,075.20-208,468.80-115,288.32

Finding the Fourth Proportional to 151,075.20, 208,468.80 and 115,288.32

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Solution

The fourth proportional to 151,075.20, 208,468.80 and 115,288.32 is: 159,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,075.20 : 208,468.80 = 115,288.32 : x
  2. Step 2: Convert to fraction form
    151,075.20/208,468.80 = 115,288.32/x
  3. Step 3: Cross multiply
    151,075.20x = 208,468.80 × 115,288.32
  4. Step 4: Simplify right side
    151,075.20x = 24,034,017,724.42
  5. Step 5: Solve for x
    x = 24,034,017,724.42/151,075.20
  6. Step 6: Final answer
    x = 159,086.45

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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.