Home / 151,364.08-208,820.16-86,797.36

Finding the Fourth Proportional to 151,364.08, 208,820.16 and 86,797.36

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Solution

The fourth proportional to 151,364.08, 208,820.16 and 86,797.36 is: 119,744.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,364.08 : 208,820.16 = 86,797.36 : x
  2. Step 2: Convert to fraction form
    151,364.08/208,820.16 = 86,797.36/x
  3. Step 3: Cross multiply
    151,364.08x = 208,820.16 × 86,797.36
  4. Step 4: Simplify right side
    151,364.08x = 18,125,038,602.78
  5. Step 5: Solve for x
    x = 18,125,038,602.78/151,364.08
  6. Step 6: Final answer
    x = 119,744.65

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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.