Home / 154,655.60-213,439.56-86,672.24

Finding the Fourth Proportional to 154,655.60, 213,439.56 and 86,672.24

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Solution

The fourth proportional to 154,655.60, 213,439.56 and 86,672.24 is: 119,616.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,655.60 : 213,439.56 = 86,672.24 : x
  2. Step 2: Convert to fraction form
    154,655.60/213,439.56 = 86,672.24/x
  3. Step 3: Cross multiply
    154,655.60x = 213,439.56 × 86,672.24
  4. Step 4: Simplify right side
    154,655.60x = 18,499,284,769.81
  5. Step 5: Solve for x
    x = 18,499,284,769.81/154,655.60
  6. Step 6: Final answer
    x = 119,616.00

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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.