Home / 236,638.02-326,557.98-129,207.72

Finding the Fourth Proportional to 236,638.02, 326,557.98 and 129,207.72

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Solution

The fourth proportional to 236,638.02, 326,557.98 and 129,207.72 is: 178,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,638.02 : 326,557.98 = 129,207.72 : x
  2. Step 2: Convert to fraction form
    236,638.02/326,557.98 = 129,207.72/x
  3. Step 3: Cross multiply
    236,638.02x = 326,557.98 × 129,207.72
  4. Step 4: Simplify right side
    236,638.02x = 42,193,812,043.61
  5. Step 5: Solve for x
    x = 42,193,812,043.61/236,638.02
  6. Step 6: Final answer
    x = 178,305.30

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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.