Home / 120,536.28-180,807.18-31,798.77

Finding the Fourth Proportional to 120,536.28, 180,807.18 and 31,798.77

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Solution

The fourth proportional to 120,536.28, 180,807.18 and 31,798.77 is: 47,698.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,536.28 : 180,807.18 = 31,798.77 : x
  2. Step 2: Convert to fraction form
    120,536.28/180,807.18 = 31,798.77/x
  3. Step 3: Cross multiply
    120,536.28x = 180,807.18 × 31,798.77
  4. Step 4: Simplify right side
    120,536.28x = 5,749,445,931.17
  5. Step 5: Solve for x
    x = 5,749,445,931.17/120,536.28
  6. Step 6: Final answer
    x = 47,698.88

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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.