Home / 105,287.72-145,296.81-59,965.70

Finding the Fourth Proportional to 105,287.72, 145,296.81 and 59,965.70

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Solution

The fourth proportional to 105,287.72, 145,296.81 and 59,965.70 is: 82,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,287.72 : 145,296.81 = 59,965.70 : x
  2. Step 2: Convert to fraction form
    105,287.72/145,296.81 = 59,965.70/x
  3. Step 3: Cross multiply
    105,287.72x = 145,296.81 × 59,965.70
  4. Step 4: Simplify right side
    105,287.72x = 8,712,824,192.93
  5. Step 5: Solve for x
    x = 8,712,824,192.93/105,287.72
  6. Step 6: Final answer
    x = 82,752.52

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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.