Home / 154,666.28-213,439.38-87,598.28

Finding the Fourth Proportional to 154,666.28, 213,439.38 and 87,598.28

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Solution

The fourth proportional to 154,666.28, 213,439.38 and 87,598.28 is: 120,885.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,666.28 : 213,439.38 = 87,598.28 : x
  2. Step 2: Convert to fraction form
    154,666.28/213,439.38 = 87,598.28/x
  3. Step 3: Cross multiply
    154,666.28x = 213,439.38 × 87,598.28
  4. Step 4: Simplify right side
    154,666.28x = 18,696,922,572.27
  5. Step 5: Solve for x
    x = 18,696,922,572.27/154,666.28
  6. Step 6: Final answer
    x = 120,885.58

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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.