Home / 120,774.88-180,349.03-98,632.18

Finding the Fourth Proportional to 120,774.88, 180,349.03 and 98,632.18

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Solution

The fourth proportional to 120,774.88, 180,349.03 and 98,632.18 is: 147,284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,774.88 : 180,349.03 = 98,632.18 : x
  2. Step 2: Convert to fraction form
    120,774.88/180,349.03 = 98,632.18/x
  3. Step 3: Cross multiply
    120,774.88x = 180,349.03 × 98,632.18
  4. Step 4: Simplify right side
    120,774.88x = 17,788,217,989.79
  5. Step 5: Solve for x
    x = 17,788,217,989.79/120,774.88
  6. Step 6: Final answer
    x = 147,284.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.