Home / 151,430.06-208,965.02-83,433.80

Finding the Fourth Proportional to 151,430.06, 208,965.02 and 83,433.80

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Solution

The fourth proportional to 151,430.06, 208,965.02 and 83,433.80 is: 115,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,430.06 : 208,965.02 = 83,433.80 : x
  2. Step 2: Convert to fraction form
    151,430.06/208,965.02 = 83,433.80/x
  3. Step 3: Cross multiply
    151,430.06x = 208,965.02 × 83,433.80
  4. Step 4: Simplify right side
    151,430.06x = 17,434,745,685.68
  5. Step 5: Solve for x
    x = 17,434,745,685.68/151,430.06
  6. Step 6: Final answer
    x = 115,133.98

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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.