Home / 105,529.79-145,632.03-62,511.73

Finding the Fourth Proportional to 105,529.79, 145,632.03 and 62,511.73

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Solution

The fourth proportional to 105,529.79, 145,632.03 and 62,511.73 is: 86,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,529.79 : 145,632.03 = 62,511.73 : x
  2. Step 2: Convert to fraction form
    105,529.79/145,632.03 = 62,511.73/x
  3. Step 3: Cross multiply
    105,529.79x = 145,632.03 × 62,511.73
  4. Step 4: Simplify right side
    105,529.79x = 9,103,710,009.05
  5. Step 5: Solve for x
    x = 9,103,710,009.05/105,529.79
  6. Step 6: Final answer
    x = 86,266.74

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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.