Home / 157,031.24-216,791.87-120,168.18

Finding the Fourth Proportional to 157,031.24, 216,791.87 and 120,168.18

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Solution

The fourth proportional to 157,031.24, 216,791.87 and 120,168.18 is: 165,900.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,031.24 : 216,791.87 = 120,168.18 : x
  2. Step 2: Convert to fraction form
    157,031.24/216,791.87 = 120,168.18/x
  3. Step 3: Cross multiply
    157,031.24x = 216,791.87 × 120,168.18
  4. Step 4: Simplify right side
    157,031.24x = 26,051,483,855.86
  5. Step 5: Solve for x
    x = 26,051,483,855.86/157,031.24
  6. Step 6: Final answer
    x = 165,900.01

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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.