Home / 105,523.10-145,616.10-57,767.20

Finding the Fourth Proportional to 105,523.10, 145,616.10 and 57,767.20

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Solution

The fourth proportional to 105,523.10, 145,616.10 and 57,767.20 is: 79,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,523.10 : 145,616.10 = 57,767.20 : x
  2. Step 2: Convert to fraction form
    105,523.10/145,616.10 = 57,767.20/x
  3. Step 3: Cross multiply
    105,523.10x = 145,616.10 × 57,767.20
  4. Step 4: Simplify right side
    105,523.10x = 8,411,834,371.92
  5. Step 5: Solve for x
    x = 8,411,834,371.92/105,523.10
  6. Step 6: Final answer
    x = 79,715.57

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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.