Home / 111,652.04-154,041.03-71,389.37

Finding the Fourth Proportional to 111,652.04, 154,041.03 and 71,389.37

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Solution

The fourth proportional to 111,652.04, 154,041.03 and 71,389.37 is: 98,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,652.04 : 154,041.03 = 71,389.37 : x
  2. Step 2: Convert to fraction form
    111,652.04/154,041.03 = 71,389.37/x
  3. Step 3: Cross multiply
    111,652.04x = 154,041.03 × 71,389.37
  4. Step 4: Simplify right side
    111,652.04x = 10,996,891,315.65
  5. Step 5: Solve for x
    x = 10,996,891,315.65/111,652.04
  6. Step 6: Final answer
    x = 98,492.53

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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.