Home / 236,603.79-326,512.35-129,172.59

Finding the Fourth Proportional to 236,603.79, 326,512.35 and 129,172.59

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Solution

The fourth proportional to 236,603.79, 326,512.35 and 129,172.59 is: 178,257.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,603.79 : 326,512.35 = 129,172.59 : x
  2. Step 2: Convert to fraction form
    236,603.79/326,512.35 = 129,172.59/x
  3. Step 3: Cross multiply
    236,603.79x = 326,512.35 × 129,172.59
  4. Step 4: Simplify right side
    236,603.79x = 42,176,445,916.49
  5. Step 5: Solve for x
    x = 42,176,445,916.49/236,603.79
  6. Step 6: Final answer
    x = 178,257.69

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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.