Home / 105,368.08-145,407.94-57,621.46

Finding the Fourth Proportional to 105,368.08, 145,407.94 and 57,621.46

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Solution

The fourth proportional to 105,368.08, 145,407.94 and 57,621.46 is: 79,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,368.08 : 145,407.94 = 57,621.46 : x
  2. Step 2: Convert to fraction form
    105,368.08/145,407.94 = 57,621.46/x
  3. Step 3: Cross multiply
    105,368.08x = 145,407.94 × 57,621.46
  4. Step 4: Simplify right side
    105,368.08x = 8,378,617,798.39
  5. Step 5: Solve for x
    x = 8,378,617,798.39/105,368.08
  6. Step 6: Final answer
    x = 79,517.61

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1.5x scale

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.