Home / 106,211.52-158,295.60-101,779.20

Finding the Fourth Proportional to 106,211.52, 158,295.60 and 101,779.20

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Solution

The fourth proportional to 106,211.52, 158,295.60 and 101,779.20 is: 151,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,211.52 : 158,295.60 = 101,779.20 : x
  2. Step 2: Convert to fraction form
    106,211.52/158,295.60 = 101,779.20/x
  3. Step 3: Cross multiply
    106,211.52x = 158,295.60 × 101,779.20
  4. Step 4: Simplify right side
    106,211.52x = 16,111,199,531.52
  5. Step 5: Solve for x
    x = 16,111,199,531.52/106,211.52
  6. Step 6: Final answer
    x = 151,689.76

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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.