Home / 92,859.06-139,368.10-92,160.12

Finding the Fourth Proportional to 92,859.06, 139,368.10 and 92,160.12

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Solution

The fourth proportional to 92,859.06, 139,368.10 and 92,160.12 is: 138,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,859.06 : 139,368.10 = 92,160.12 : x
  2. Step 2: Convert to fraction form
    92,859.06/139,368.10 = 92,160.12/x
  3. Step 3: Cross multiply
    92,859.06x = 139,368.10 × 92,160.12
  4. Step 4: Simplify right side
    92,859.06x = 12,844,180,820.17
  5. Step 5: Solve for x
    x = 12,844,180,820.17/92,859.06
  6. Step 6: Final answer
    x = 138,319.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.