Home / 103,517.04-155,276.10-28,637.40

Finding the Fourth Proportional to 103,517.04, 155,276.10 and 28,637.40

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Solution

The fourth proportional to 103,517.04, 155,276.10 and 28,637.40 is: 42,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,517.04 : 155,276.10 = 28,637.40 : x
  2. Step 2: Convert to fraction form
    103,517.04/155,276.10 = 28,637.40/x
  3. Step 3: Cross multiply
    103,517.04x = 155,276.10 × 28,637.40
  4. Step 4: Simplify right side
    103,517.04x = 4,446,703,786.14
  5. Step 5: Solve for x
    x = 4,446,703,786.14/103,517.04
  6. Step 6: Final answer
    x = 42,956.25

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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.