Home / 105,302.76-145,271.57-62,836.71

Finding the Fourth Proportional to 105,302.76, 145,271.57 and 62,836.71

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Solution

The fourth proportional to 105,302.76, 145,271.57 and 62,836.71 is: 86,687.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,302.76 : 145,271.57 = 62,836.71 : x
  2. Step 2: Convert to fraction form
    105,302.76/145,271.57 = 62,836.71/x
  3. Step 3: Cross multiply
    105,302.76x = 145,271.57 × 62,836.71
  4. Step 4: Simplify right side
    105,302.76x = 9,128,387,201.15
  5. Step 5: Solve for x
    x = 9,128,387,201.15/105,302.76
  6. Step 6: Final answer
    x = 86,687.07

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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.