Home / 154,684.32-213,473.46-86,723.58

Finding the Fourth Proportional to 154,684.32, 213,473.46 and 86,723.58

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Solution

The fourth proportional to 154,684.32, 213,473.46 and 86,723.58 is: 119,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,684.32 : 213,473.46 = 86,723.58 : x
  2. Step 2: Convert to fraction form
    154,684.32/213,473.46 = 86,723.58/x
  3. Step 3: Cross multiply
    154,684.32x = 213,473.46 × 86,723.58
  4. Step 4: Simplify right side
    154,684.32x = 18,513,182,686.19
  5. Step 5: Solve for x
    x = 18,513,182,686.19/154,684.32
  6. Step 6: Final answer
    x = 119,683.64

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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.