Home / 236,689.28-326,629.55-129,259.34

Finding the Fourth Proportional to 236,689.28, 326,629.55 and 129,259.34

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Solution

The fourth proportional to 236,689.28, 326,629.55 and 129,259.34 is: 178,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,689.28 : 326,629.55 = 129,259.34 : x
  2. Step 2: Convert to fraction form
    236,689.28/326,629.55 = 129,259.34/x
  3. Step 3: Cross multiply
    236,689.28x = 326,629.55 × 129,259.34
  4. Step 4: Simplify right side
    236,689.28x = 42,219,919,411.20
  5. Step 5: Solve for x
    x = 42,219,919,411.20/236,689.28
  6. Step 6: Final answer
    x = 178,376.98

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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.