Home / 105,330.12-145,338.76-60,009

Finding the Fourth Proportional to 105,330.12, 145,338.76 and 60,009

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Solution

The fourth proportional to 105,330.12, 145,338.76 and 60,009 is: 82,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,330.12 : 145,338.76 = 60,009 : x
  2. Step 2: Convert to fraction form
    105,330.12/145,338.76 = 60,009/x
  3. Step 3: Cross multiply
    105,330.12x = 145,338.76 × 60,009
  4. Step 4: Simplify right side
    105,330.12x = 8,721,633,648.84
  5. Step 5: Solve for x
    x = 8,721,633,648.84/105,330.12
  6. Step 6: Final answer
    x = 82,802.85

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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.