Home / 103,465.15-155,306.32-91,694.23

Finding the Fourth Proportional to 103,465.15, 155,306.32 and 91,694.23

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Solution

The fourth proportional to 103,465.15, 155,306.32 and 91,694.23 is: 137,637.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,465.15 : 155,306.32 = 91,694.23 : x
  2. Step 2: Convert to fraction form
    103,465.15/155,306.32 = 91,694.23/x
  3. Step 3: Cross multiply
    103,465.15x = 155,306.32 × 91,694.23
  4. Step 4: Simplify right side
    103,465.15x = 14,240,693,426.53
  5. Step 5: Solve for x
    x = 14,240,693,426.53/103,465.15
  6. Step 6: Final answer
    x = 137,637.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.