Home / 236,538.60-326,411.28-129,107.76

Finding the Fourth Proportional to 236,538.60, 326,411.28 and 129,107.76

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Solution

The fourth proportional to 236,538.60, 326,411.28 and 129,107.76 is: 178,162.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,538.60 : 326,411.28 = 129,107.76 : x
  2. Step 2: Convert to fraction form
    236,538.60/326,411.28 = 129,107.76/x
  3. Step 3: Cross multiply
    236,538.60x = 326,411.28 × 129,107.76
  4. Step 4: Simplify right side
    236,538.60x = 42,142,229,199.53
  5. Step 5: Solve for x
    x = 42,142,229,199.53/236,538.60
  6. Step 6: Final answer
    x = 178,162.17

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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.