Home / 154,475.42-213,126.54-86,482.40

Finding the Fourth Proportional to 154,475.42, 213,126.54 and 86,482.40

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Solution

The fourth proportional to 154,475.42, 213,126.54 and 86,482.40 is: 119,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,475.42 : 213,126.54 = 86,482.40 : x
  2. Step 2: Convert to fraction form
    154,475.42/213,126.54 = 86,482.40/x
  3. Step 3: Cross multiply
    154,475.42x = 213,126.54 × 86,482.40
  4. Step 4: Simplify right side
    154,475.42x = 18,431,694,682.90
  5. Step 5: Solve for x
    x = 18,431,694,682.90/154,475.42
  6. Step 6: Final answer
    x = 119,317.98

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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.