Home / 105,476.02-145,557.29-57,077.94

Finding the Fourth Proportional to 105,476.02, 145,557.29 and 57,077.94

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Solution

The fourth proportional to 105,476.02, 145,557.29 and 57,077.94 is: 78,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,476.02 : 145,557.29 = 57,077.94 : x
  2. Step 2: Convert to fraction form
    105,476.02/145,557.29 = 57,077.94/x
  3. Step 3: Cross multiply
    105,476.02x = 145,557.29 × 57,077.94
  4. Step 4: Simplify right side
    105,476.02x = 8,308,110,793.19
  5. Step 5: Solve for x
    x = 8,308,110,793.19/105,476.02
  6. Step 6: Final answer
    x = 78,767.77

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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.