Home / 132,638.70-183,037.95-72,210.54

Finding the Fourth Proportional to 132,638.70, 183,037.95 and 72,210.54

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Solution

The fourth proportional to 132,638.70, 183,037.95 and 72,210.54 is: 99,648.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,638.70 : 183,037.95 = 72,210.54 : x
  2. Step 2: Convert to fraction form
    132,638.70/183,037.95 = 72,210.54/x
  3. Step 3: Cross multiply
    132,638.70x = 183,037.95 × 72,210.54
  4. Step 4: Simplify right side
    132,638.70x = 13,217,269,209.99
  5. Step 5: Solve for x
    x = 13,217,269,209.99/132,638.70
  6. Step 6: Final answer
    x = 99,648.66

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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.