Home / 103,011.46-155,219.10-84,701.66

Finding the Fourth Proportional to 103,011.46, 155,219.10 and 84,701.66

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Solution

The fourth proportional to 103,011.46, 155,219.10 and 84,701.66 is: 127,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,011.46 : 155,219.10 = 84,701.66 : x
  2. Step 2: Convert to fraction form
    103,011.46/155,219.10 = 84,701.66/x
  3. Step 3: Cross multiply
    103,011.46x = 155,219.10 × 84,701.66
  4. Step 4: Simplify right side
    103,011.46x = 13,147,315,433.71
  5. Step 5: Solve for x
    x = 13,147,315,433.71/103,011.46
  6. Step 6: Final answer
    x = 127,629.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.