Home / 151,643.02-209,199.70-87,943.90

Finding the Fourth Proportional to 151,643.02, 209,199.70 and 87,943.90

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Solution

The fourth proportional to 151,643.02, 209,199.70 and 87,943.90 is: 121,323.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,643.02 : 209,199.70 = 87,943.90 : x
  2. Step 2: Convert to fraction form
    151,643.02/209,199.70 = 87,943.90/x
  3. Step 3: Cross multiply
    151,643.02x = 209,199.70 × 87,943.90
  4. Step 4: Simplify right side
    151,643.02x = 18,397,837,496.83
  5. Step 5: Solve for x
    x = 18,397,837,496.83/151,643.02
  6. Step 6: Final answer
    x = 121,323.34

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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.