Home / 147,215.79-203,164.02-83,559.51

Finding the Fourth Proportional to 147,215.79, 203,164.02 and 83,559.51

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Solution

The fourth proportional to 147,215.79, 203,164.02 and 83,559.51 is: 115,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,215.79 : 203,164.02 = 83,559.51 : x
  2. Step 2: Convert to fraction form
    147,215.79/203,164.02 = 83,559.51/x
  3. Step 3: Cross multiply
    147,215.79x = 203,164.02 × 83,559.51
  4. Step 4: Simplify right side
    147,215.79x = 16,976,285,960.83
  5. Step 5: Solve for x
    x = 16,976,285,960.83/147,215.79
  6. Step 6: Final answer
    x = 115,315.66

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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.