Home / 105,053.30-144,985.64-58,490.86

Finding the Fourth Proportional to 105,053.30, 144,985.64 and 58,490.86

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Solution

The fourth proportional to 105,053.30, 144,985.64 and 58,490.86 is: 80,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,053.30 : 144,985.64 = 58,490.86 : x
  2. Step 2: Convert to fraction form
    105,053.30/144,985.64 = 58,490.86/x
  3. Step 3: Cross multiply
    105,053.30x = 144,985.64 × 58,490.86
  4. Step 4: Simplify right side
    105,053.30x = 8,480,334,771.25
  5. Step 5: Solve for x
    x = 8,480,334,771.25/105,053.30
  6. Step 6: Final answer
    x = 80,724.12

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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.