Home / 154,423.27-213,094.23-86,428.81

Finding the Fourth Proportional to 154,423.27, 213,094.23 and 86,428.81

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Solution

The fourth proportional to 154,423.27, 213,094.23 and 86,428.81 is: 119,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,423.27 : 213,094.23 = 86,428.81 : x
  2. Step 2: Convert to fraction form
    154,423.27/213,094.23 = 86,428.81/x
  3. Step 3: Cross multiply
    154,423.27x = 213,094.23 × 86,428.81
  4. Step 4: Simplify right side
    154,423.27x = 18,417,479,651.30
  5. Step 5: Solve for x
    x = 18,417,479,651.30/154,423.27
  6. Step 6: Final answer
    x = 119,266.22

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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.