Home / 132,711.05-183,140.30-72,281.50

Finding the Fourth Proportional to 132,711.05, 183,140.30 and 72,281.50

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Solution

The fourth proportional to 132,711.05, 183,140.30 and 72,281.50 is: 99,747.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,711.05 : 183,140.30 = 72,281.50 : x
  2. Step 2: Convert to fraction form
    132,711.05/183,140.30 = 72,281.50/x
  3. Step 3: Cross multiply
    132,711.05x = 183,140.30 × 72,281.50
  4. Step 4: Simplify right side
    132,711.05x = 13,237,655,594.45
  5. Step 5: Solve for x
    x = 13,237,655,594.45/132,711.05
  6. Step 6: Final answer
    x = 99,747.95

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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.