Home / 119,782.48-179,378.42-75,298.90

Finding the Fourth Proportional to 119,782.48, 179,378.42 and 75,298.90

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Solution

The fourth proportional to 119,782.48, 179,378.42 and 75,298.90 is: 112,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,782.48 : 179,378.42 = 75,298.90 : x
  2. Step 2: Convert to fraction form
    119,782.48/179,378.42 = 75,298.90/x
  3. Step 3: Cross multiply
    119,782.48x = 179,378.42 × 75,298.90
  4. Step 4: Simplify right side
    119,782.48x = 13,506,997,709.74
  5. Step 5: Solve for x
    x = 13,506,997,709.74/119,782.48
  6. Step 6: Final answer
    x = 112,762.72

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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.