Home / 132,611.76-183,004.56-72,182.40

Finding the Fourth Proportional to 132,611.76, 183,004.56 and 72,182.40

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Solution

The fourth proportional to 132,611.76, 183,004.56 and 72,182.40 is: 99,611.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,611.76 : 183,004.56 = 72,182.40 : x
  2. Step 2: Convert to fraction form
    132,611.76/183,004.56 = 72,182.40/x
  3. Step 3: Cross multiply
    132,611.76x = 183,004.56 × 72,182.40
  4. Step 4: Simplify right side
    132,611.76x = 13,209,708,351.74
  5. Step 5: Solve for x
    x = 13,209,708,351.74/132,611.76
  6. Step 6: Final answer
    x = 99,611.89

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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.