Home / 105,363.76-145,399.16-62,345.48

Finding the Fourth Proportional to 105,363.76, 145,399.16 and 62,345.48

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Solution

The fourth proportional to 105,363.76, 145,399.16 and 62,345.48 is: 86,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,363.76 : 145,399.16 = 62,345.48 : x
  2. Step 2: Convert to fraction form
    105,363.76/145,399.16 = 62,345.48/x
  3. Step 3: Cross multiply
    105,363.76x = 145,399.16 × 62,345.48
  4. Step 4: Simplify right side
    105,363.76x = 9,064,980,421.80
  5. Step 5: Solve for x
    x = 9,064,980,421.80/105,363.76
  6. Step 6: Final answer
    x = 86,035.09

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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.