Home / 154,667.28-213,440.76-87,599.28

Finding the Fourth Proportional to 154,667.28, 213,440.76 and 87,599.28

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Solution

The fourth proportional to 154,667.28, 213,440.76 and 87,599.28 is: 120,886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,667.28 : 213,440.76 = 87,599.28 : x
  2. Step 2: Convert to fraction form
    154,667.28/213,440.76 = 87,599.28/x
  3. Step 3: Cross multiply
    154,667.28x = 213,440.76 × 87,599.28
  4. Step 4: Simplify right side
    154,667.28x = 18,697,256,898.65
  5. Step 5: Solve for x
    x = 18,697,256,898.65/154,667.28
  6. Step 6: Final answer
    x = 120,886.96

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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.