Home / 154,753.47-213,652.94-101,128.23

Finding the Fourth Proportional to 154,753.47, 213,652.94 and 101,128.23

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Solution

The fourth proportional to 154,753.47, 213,652.94 and 101,128.23 is: 139,617.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,753.47 : 213,652.94 = 101,128.23 : x
  2. Step 2: Convert to fraction form
    154,753.47/213,652.94 = 101,128.23/x
  3. Step 3: Cross multiply
    154,753.47x = 213,652.94 × 101,128.23
  4. Step 4: Simplify right side
    154,753.47x = 21,606,343,656.50
  5. Step 5: Solve for x
    x = 21,606,343,656.50/154,753.47
  6. Step 6: Final answer
    x = 139,617.83

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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.