Home / 105,256.43-145,253.66-57,510.12

Finding the Fourth Proportional to 105,256.43, 145,253.66 and 57,510.12

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Solution

The fourth proportional to 105,256.43, 145,253.66 and 57,510.12 is: 79,363.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,256.43 : 145,253.66 = 57,510.12 : x
  2. Step 2: Convert to fraction form
    105,256.43/145,253.66 = 57,510.12/x
  3. Step 3: Cross multiply
    105,256.43x = 145,253.66 × 57,510.12
  4. Step 4: Simplify right side
    105,256.43x = 8,353,554,857.14
  5. Step 5: Solve for x
    x = 8,353,554,857.14/105,256.43
  6. Step 6: Final answer
    x = 79,363.84

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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.