Home / 105,125.24-145,091.63-62,686.50

Finding the Fourth Proportional to 105,125.24, 145,091.63 and 62,686.50

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Solution

The fourth proportional to 105,125.24, 145,091.63 and 62,686.50 is: 86,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,125.24 : 145,091.63 = 62,686.50 : x
  2. Step 2: Convert to fraction form
    105,125.24/145,091.63 = 62,686.50/x
  3. Step 3: Cross multiply
    105,125.24x = 145,091.63 × 62,686.50
  4. Step 4: Simplify right side
    105,125.24x = 9,095,286,620.71
  5. Step 5: Solve for x
    x = 9,095,286,620.71/105,125.24
  6. Step 6: Final answer
    x = 86,518.59

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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.