Home / 120,424.77-180,538.47-45,502.29

Finding the Fourth Proportional to 120,424.77, 180,538.47 and 45,502.29

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Solution

The fourth proportional to 120,424.77, 180,538.47 and 45,502.29 is: 68,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,424.77 : 180,538.47 = 45,502.29 : x
  2. Step 2: Convert to fraction form
    120,424.77/180,538.47 = 45,502.29/x
  3. Step 3: Cross multiply
    120,424.77x = 180,538.47 × 45,502.29
  4. Step 4: Simplify right side
    120,424.77x = 8,214,913,818.10
  5. Step 5: Solve for x
    x = 8,214,913,818.10/120,424.77
  6. Step 6: Final answer
    x = 68,216.15

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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.