Home / 105,268.16-145,280.22-57,528.74

Finding the Fourth Proportional to 105,268.16, 145,280.22 and 57,528.74

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Solution

The fourth proportional to 105,268.16, 145,280.22 and 57,528.74 is: 79,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,268.16 : 145,280.22 = 57,528.74 : x
  2. Step 2: Convert to fraction form
    105,268.16/145,280.22 = 57,528.74/x
  3. Step 3: Cross multiply
    105,268.16x = 145,280.22 × 57,528.74
  4. Step 4: Simplify right side
    105,268.16x = 8,357,788,003.52
  5. Step 5: Solve for x
    x = 8,357,788,003.52/105,268.16
  6. Step 6: Final answer
    x = 79,395.21

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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.