Home / 147,315.16-203,285.34-86,871.94

Finding the Fourth Proportional to 147,315.16, 203,285.34 and 86,871.94

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Solution

The fourth proportional to 147,315.16, 203,285.34 and 86,871.94 is: 119,877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,315.16 : 203,285.34 = 86,871.94 : x
  2. Step 2: Convert to fraction form
    147,315.16/203,285.34 = 86,871.94/x
  3. Step 3: Cross multiply
    147,315.16x = 203,285.34 × 86,871.94
  4. Step 4: Simplify right side
    147,315.16x = 17,659,791,859.36
  5. Step 5: Solve for x
    x = 17,659,791,859.36/147,315.16
  6. Step 6: Final answer
    x = 119,877.63

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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.