Home / 120,862.08-166,779.84-67,140.48

Finding the Fourth Proportional to 120,862.08, 166,779.84 and 67,140.48

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Solution

The fourth proportional to 120,862.08, 166,779.84 and 67,140.48 is: 92,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,862.08 : 166,779.84 = 67,140.48 : x
  2. Step 2: Convert to fraction form
    120,862.08/166,779.84 = 67,140.48/x
  3. Step 3: Cross multiply
    120,862.08x = 166,779.84 × 67,140.48
  4. Step 4: Simplify right side
    120,862.08x = 11,197,678,511.92
  5. Step 5: Solve for x
    x = 11,197,678,511.92/120,862.08
  6. Step 6: Final answer
    x = 92,648.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.