Home / 119,807.40-165,328.32-72,051.48

Finding the Fourth Proportional to 119,807.40, 165,328.32 and 72,051.48

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Solution

The fourth proportional to 119,807.40, 165,328.32 and 72,051.48 is: 99,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,807.40 : 165,328.32 = 72,051.48 : x
  2. Step 2: Convert to fraction form
    119,807.40/165,328.32 = 72,051.48/x
  3. Step 3: Cross multiply
    119,807.40x = 165,328.32 × 72,051.48
  4. Step 4: Simplify right side
    119,807.40x = 11,912,150,141.91
  5. Step 5: Solve for x
    x = 11,912,150,141.91/119,807.40
  6. Step 6: Final answer
    x = 99,427.50

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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.