Home / 120,147.71-180,217.51-56,998.08

Finding the Fourth Proportional to 120,147.71, 180,217.51 and 56,998.08

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Solution

The fourth proportional to 120,147.71, 180,217.51 and 56,998.08 is: 85,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,147.71 : 180,217.51 = 56,998.08 : x
  2. Step 2: Convert to fraction form
    120,147.71/180,217.51 = 56,998.08/x
  3. Step 3: Cross multiply
    120,147.71x = 180,217.51 × 56,998.08
  4. Step 4: Simplify right side
    120,147.71x = 10,272,051,909.89
  5. Step 5: Solve for x
    x = 10,272,051,909.89/120,147.71
  6. Step 6: Final answer
    x = 85,495.20

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1.5x scale

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.