Home / 132,708.57-183,139.01-72,279.48

Finding the Fourth Proportional to 132,708.57, 183,139.01 and 72,279.48

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Solution

The fourth proportional to 132,708.57, 183,139.01 and 72,279.48 is: 99,746.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,708.57 : 183,139.01 = 72,279.48 : x
  2. Step 2: Convert to fraction form
    132,708.57/183,139.01 = 72,279.48/x
  3. Step 3: Cross multiply
    132,708.57x = 183,139.01 × 72,279.48
  4. Step 4: Simplify right side
    132,708.57x = 13,237,192,410.51
  5. Step 5: Solve for x
    x = 13,237,192,410.51/132,708.57
  6. Step 6: Final answer
    x = 99,746.33

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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.