Home / 119,805.40-165,325.56-72,049.48

Finding the Fourth Proportional to 119,805.40, 165,325.56 and 72,049.48

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Solution

The fourth proportional to 119,805.40, 165,325.56 and 72,049.48 is: 99,424.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,805.40 : 165,325.56 = 72,049.48 : x
  2. Step 2: Convert to fraction form
    119,805.40/165,325.56 = 72,049.48/x
  3. Step 3: Cross multiply
    119,805.40x = 165,325.56 × 72,049.48
  4. Step 4: Simplify right side
    119,805.40x = 11,911,620,628.71
  5. Step 5: Solve for x
    x = 11,911,620,628.71/119,805.40
  6. Step 6: Final answer
    x = 99,424.74

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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.