Home / 119,886.24-165,341.44-72,130.67

Finding the Fourth Proportional to 119,886.24, 165,341.44 and 72,130.67

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Solution

The fourth proportional to 119,886.24, 165,341.44 and 72,130.67 is: 99,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,886.24 : 165,341.44 = 72,130.67 : x
  2. Step 2: Convert to fraction form
    119,886.24/165,341.44 = 72,130.67/x
  3. Step 3: Cross multiply
    119,886.24x = 165,341.44 × 72,130.67
  4. Step 4: Simplify right side
    119,886.24x = 11,926,187,658.60
  5. Step 5: Solve for x
    x = 11,926,187,658.60/119,886.24
  6. Step 6: Final answer
    x = 99,479.20

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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.