Home / 80,117.07-120,200.54-57,938.46

Finding the Fourth Proportional to 80,117.07, 120,200.54 and 57,938.46

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Solution

The fourth proportional to 80,117.07, 120,200.54 and 57,938.46 is: 86,925.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,117.07 : 120,200.54 = 57,938.46 : x
  2. Step 2: Convert to fraction form
    80,117.07/120,200.54 = 57,938.46/x
  3. Step 3: Cross multiply
    80,117.07x = 120,200.54 × 57,938.46
  4. Step 4: Simplify right side
    80,117.07x = 6,964,233,889.08
  5. Step 5: Solve for x
    x = 6,964,233,889.08/80,117.07
  6. Step 6: Final answer
    x = 86,925.72

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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.