Home / 154,464.42-213,111.36-86,471.40

Finding the Fourth Proportional to 154,464.42, 213,111.36 and 86,471.40

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Solution

The fourth proportional to 154,464.42, 213,111.36 and 86,471.40 is: 119,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,464.42 : 213,111.36 = 86,471.40 : x
  2. Step 2: Convert to fraction form
    154,464.42/213,111.36 = 86,471.40/x
  3. Step 3: Cross multiply
    154,464.42x = 213,111.36 × 86,471.40
  4. Step 4: Simplify right side
    154,464.42x = 18,428,037,655.10
  5. Step 5: Solve for x
    x = 18,428,037,655.10/154,464.42
  6. Step 6: Final answer
    x = 119,302.80

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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.