Home / 105,104.49-145,047.27-57,360.93

Finding the Fourth Proportional to 105,104.49, 145,047.27 and 57,360.93

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Solution

The fourth proportional to 105,104.49, 145,047.27 and 57,360.93 is: 79,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,104.49 : 145,047.27 = 57,360.93 : x
  2. Step 2: Convert to fraction form
    105,104.49/145,047.27 = 57,360.93/x
  3. Step 3: Cross multiply
    105,104.49x = 145,047.27 × 57,360.93
  4. Step 4: Simplify right side
    105,104.49x = 8,320,045,575.92
  5. Step 5: Solve for x
    x = 8,320,045,575.92/105,104.49
  6. Step 6: Final answer
    x = 79,159.76

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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.