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Finding the Fourth Proportional to 131,071.58, 180,877.05 and 73,710.88

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Solution

The fourth proportional to 131,071.58, 180,877.05 and 73,710.88 is: 101,720.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,071.58 : 180,877.05 = 73,710.88 : x
  2. Step 2: Convert to fraction form
    131,071.58/180,877.05 = 73,710.88/x
  3. Step 3: Cross multiply
    131,071.58x = 180,877.05 × 73,710.88
  4. Step 4: Simplify right side
    131,071.58x = 13,332,606,075.11
  5. Step 5: Solve for x
    x = 13,332,606,075.11/131,071.58
  6. Step 6: Final answer
    x = 101,720.04

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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.