Home / 105,315.39-145,338.03-62,898.39

Finding the Fourth Proportional to 105,315.39, 145,338.03 and 62,898.39

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Solution

The fourth proportional to 105,315.39, 145,338.03 and 62,898.39 is: 86,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,315.39 : 145,338.03 = 62,898.39 : x
  2. Step 2: Convert to fraction form
    105,315.39/145,338.03 = 62,898.39/x
  3. Step 3: Cross multiply
    105,315.39x = 145,338.03 × 62,898.39
  4. Step 4: Simplify right side
    105,315.39x = 9,141,528,092.77
  5. Step 5: Solve for x
    x = 9,141,528,092.77/105,315.39
  6. Step 6: Final answer
    x = 86,801.45

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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.