Home / 236,915.32-326,950.69-129,483.04

Finding the Fourth Proportional to 236,915.32, 326,950.69 and 129,483.04

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Solution

The fourth proportional to 236,915.32, 326,950.69 and 129,483.04 is: 178,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,915.32 : 326,950.69 = 129,483.04 : x
  2. Step 2: Convert to fraction form
    236,915.32/326,950.69 = 129,483.04/x
  3. Step 3: Cross multiply
    236,915.32x = 326,950.69 × 129,483.04
  4. Step 4: Simplify right side
    236,915.32x = 42,334,570,547.44
  5. Step 5: Solve for x
    x = 42,334,570,547.44/236,915.32
  6. Step 6: Final answer
    x = 178,690.73

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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.