Home / 151,259.08-208,728.66-87,592.36

Finding the Fourth Proportional to 151,259.08, 208,728.66 and 87,592.36

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Solution

The fourth proportional to 151,259.08, 208,728.66 and 87,592.36 is: 120,872.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,259.08 : 208,728.66 = 87,592.36 : x
  2. Step 2: Convert to fraction form
    151,259.08/208,728.66 = 87,592.36/x
  3. Step 3: Cross multiply
    151,259.08x = 208,728.66 × 87,592.36
  4. Step 4: Simplify right side
    151,259.08x = 18,283,035,929.04
  5. Step 5: Solve for x
    x = 18,283,035,929.04/151,259.08
  6. Step 6: Final answer
    x = 120,872.32

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1.5x scale

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.