Home / 120,528.55-180,682.11-64,407.40

Finding the Fourth Proportional to 120,528.55, 180,682.11 and 64,407.40

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Solution

The fourth proportional to 120,528.55, 180,682.11 and 64,407.40 is: 96,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,528.55 : 180,682.11 = 64,407.40 : x
  2. Step 2: Convert to fraction form
    120,528.55/180,682.11 = 64,407.40/x
  3. Step 3: Cross multiply
    120,528.55x = 180,682.11 × 64,407.40
  4. Step 4: Simplify right side
    120,528.55x = 11,637,264,479.91
  5. Step 5: Solve for x
    x = 11,637,264,479.91/120,528.55
  6. Step 6: Final answer
    x = 96,551.93

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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.