Home / 137,779.98-190,123.23-77,336.76

Finding the Fourth Proportional to 137,779.98, 190,123.23 and 77,336.76

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Solution

The fourth proportional to 137,779.98, 190,123.23 and 77,336.76 is: 106,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,779.98 : 190,123.23 = 77,336.76 : x
  2. Step 2: Convert to fraction form
    137,779.98/190,123.23 = 77,336.76/x
  3. Step 3: Cross multiply
    137,779.98x = 190,123.23 × 77,336.76
  4. Step 4: Simplify right side
    137,779.98x = 14,703,514,608.93
  5. Step 5: Solve for x
    x = 14,703,514,608.93/137,779.98
  6. Step 6: Final answer
    x = 106,717.35

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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.