Home / 132,640.03-183,043.09-72,211.10

Finding the Fourth Proportional to 132,640.03, 183,043.09 and 72,211.10

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Solution

The fourth proportional to 132,640.03, 183,043.09 and 72,211.10 is: 99,651.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,640.03 : 183,043.09 = 72,211.10 : x
  2. Step 2: Convert to fraction form
    132,640.03/183,043.09 = 72,211.10/x
  3. Step 3: Cross multiply
    132,640.03x = 183,043.09 × 72,211.10
  4. Step 4: Simplify right side
    132,640.03x = 13,217,742,051.35
  5. Step 5: Solve for x
    x = 13,217,742,051.35/132,640.03
  6. Step 6: Final answer
    x = 99,651.23

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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.