Home / 105,271.44-145,275.12-57,525.60

Finding the Fourth Proportional to 105,271.44, 145,275.12 and 57,525.60

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Solution

The fourth proportional to 105,271.44, 145,275.12 and 57,525.60 is: 79,385.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,271.44 : 145,275.12 = 57,525.60 : x
  2. Step 2: Convert to fraction form
    105,271.44/145,275.12 = 57,525.60/x
  3. Step 3: Cross multiply
    105,271.44x = 145,275.12 × 57,525.60
  4. Step 4: Simplify right side
    105,271.44x = 8,357,038,443.07
  5. Step 5: Solve for x
    x = 8,357,038,443.07/105,271.44
  6. Step 6: Final answer
    x = 79,385.62

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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.