Home / 105,265.14-145,362.88-67,605

Finding the Fourth Proportional to 105,265.14, 145,362.88 and 67,605

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Solution

The fourth proportional to 105,265.14, 145,362.88 and 67,605 is: 93,357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,265.14 : 145,362.88 = 67,605 : x
  2. Step 2: Convert to fraction form
    105,265.14/145,362.88 = 67,605/x
  3. Step 3: Cross multiply
    105,265.14x = 145,362.88 × 67,605
  4. Step 4: Simplify right side
    105,265.14x = 9,827,257,502.40
  5. Step 5: Solve for x
    x = 9,827,257,502.40/105,265.14
  6. Step 6: Final answer
    x = 93,357.19

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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.