Home / 105,613.75-145,747.02-57,868.93

Finding the Fourth Proportional to 105,613.75, 145,747.02 and 57,868.93

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Solution

The fourth proportional to 105,613.75, 145,747.02 and 57,868.93 is: 79,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,613.75 : 145,747.02 = 57,868.93 : x
  2. Step 2: Convert to fraction form
    105,613.75/145,747.02 = 57,868.93/x
  3. Step 3: Cross multiply
    105,613.75x = 145,747.02 × 57,868.93
  4. Step 4: Simplify right side
    105,613.75x = 8,434,224,098.09
  5. Step 5: Solve for x
    x = 8,434,224,098.09/105,613.75
  6. Step 6: Final answer
    x = 79,859.15

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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.