Home / 124,011.71-171,188.34-83,779.72

Finding the Fourth Proportional to 124,011.71, 171,188.34 and 83,779.72

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Solution

The fourth proportional to 124,011.71, 171,188.34 and 83,779.72 is: 115,651.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,011.71 : 171,188.34 = 83,779.72 : x
  2. Step 2: Convert to fraction form
    124,011.71/171,188.34 = 83,779.72/x
  3. Step 3: Cross multiply
    124,011.71x = 171,188.34 × 83,779.72
  4. Step 4: Simplify right side
    124,011.71x = 14,342,110,450.32
  5. Step 5: Solve for x
    x = 14,342,110,450.32/124,011.71
  6. Step 6: Final answer
    x = 115,651.26

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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.