Home / 144,328.80-216,165.15-74,126.10

Finding the Fourth Proportional to 144,328.80, 216,165.15 and 74,126.10

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Solution

The fourth proportional to 144,328.80, 216,165.15 and 74,126.10 is: 111,020.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,328.80 : 216,165.15 = 74,126.10 : x
  2. Step 2: Convert to fraction form
    144,328.80/216,165.15 = 74,126.10/x
  3. Step 3: Cross multiply
    144,328.80x = 216,165.15 × 74,126.10
  4. Step 4: Simplify right side
    144,328.80x = 16,023,479,525.42
  5. Step 5: Solve for x
    x = 16,023,479,525.42/144,328.80
  6. Step 6: Final answer
    x = 111,020.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.