Home / 131,011.71-180,774.08-73,643.46

Finding the Fourth Proportional to 131,011.71, 180,774.08 and 73,643.46

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Solution

The fourth proportional to 131,011.71, 180,774.08 and 73,643.46 is: 101,615.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,011.71 : 180,774.08 = 73,643.46 : x
  2. Step 2: Convert to fraction form
    131,011.71/180,774.08 = 73,643.46/x
  3. Step 3: Cross multiply
    131,011.71x = 180,774.08 × 73,643.46
  4. Step 4: Simplify right side
    131,011.71x = 13,312,828,361.30
  5. Step 5: Solve for x
    x = 13,312,828,361.30/131,011.71
  6. Step 6: Final answer
    x = 101,615.56

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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.