Home / 119,947.60-179,633.40-64,421.20

Finding the Fourth Proportional to 119,947.60, 179,633.40 and 64,421.20

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Solution

The fourth proportional to 119,947.60, 179,633.40 and 64,421.20 is: 96,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,947.60 : 179,633.40 = 64,421.20 : x
  2. Step 2: Convert to fraction form
    119,947.60/179,633.40 = 64,421.20/x
  3. Step 3: Cross multiply
    119,947.60x = 179,633.40 × 64,421.20
  4. Step 4: Simplify right side
    119,947.60x = 11,572,199,188.08
  5. Step 5: Solve for x
    x = 11,572,199,188.08/119,947.60
  6. Step 6: Final answer
    x = 96,477.12

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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.