Home / 154,610.46-213,361.02-86,630.40

Finding the Fourth Proportional to 154,610.46, 213,361.02 and 86,630.40

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Solution

The fourth proportional to 154,610.46, 213,361.02 and 86,630.40 is: 119,549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,610.46 : 213,361.02 = 86,630.40 : x
  2. Step 2: Convert to fraction form
    154,610.46/213,361.02 = 86,630.40/x
  3. Step 3: Cross multiply
    154,610.46x = 213,361.02 × 86,630.40
  4. Step 4: Simplify right side
    154,610.46x = 18,483,550,507.01
  5. Step 5: Solve for x
    x = 18,483,550,507.01/154,610.46
  6. Step 6: Final answer
    x = 119,549.16

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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.