Home / 120,412.61-180,566.56-64,240.19

Finding the Fourth Proportional to 120,412.61, 180,566.56 and 64,240.19

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Solution

The fourth proportional to 120,412.61, 180,566.56 and 64,240.19 is: 96,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,412.61 : 180,566.56 = 64,240.19 : x
  2. Step 2: Convert to fraction form
    120,412.61/180,566.56 = 64,240.19/x
  3. Step 3: Cross multiply
    120,412.61x = 180,566.56 × 64,240.19
  4. Step 4: Simplify right side
    120,412.61x = 11,599,630,122.05
  5. Step 5: Solve for x
    x = 11,599,630,122.05/120,412.61
  6. Step 6: Final answer
    x = 96,332.35

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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.