Home / 105,273.15-145,276.65-57,526.80

Finding the Fourth Proportional to 105,273.15, 145,276.65 and 57,526.80

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Solution

The fourth proportional to 105,273.15, 145,276.65 and 57,526.80 is: 79,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,273.15 : 145,276.65 = 57,526.80 : x
  2. Step 2: Convert to fraction form
    105,273.15/145,276.65 = 57,526.80/x
  3. Step 3: Cross multiply
    105,273.15x = 145,276.65 × 57,526.80
  4. Step 4: Simplify right side
    105,273.15x = 8,357,300,789.22
  5. Step 5: Solve for x
    x = 8,357,300,789.22/105,273.15
  6. Step 6: Final answer
    x = 79,386.82

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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.