Home / 125,136.45-187,482.74-103,952.25

Finding the Fourth Proportional to 125,136.45, 187,482.74 and 103,952.25

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Solution

The fourth proportional to 125,136.45, 187,482.74 and 103,952.25 is: 155,744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,136.45 : 187,482.74 = 103,952.25 : x
  2. Step 2: Convert to fraction form
    125,136.45/187,482.74 = 103,952.25/x
  3. Step 3: Cross multiply
    125,136.45x = 187,482.74 × 103,952.25
  4. Step 4: Simplify right side
    125,136.45x = 19,489,252,139.40
  5. Step 5: Solve for x
    x = 19,489,252,139.40/125,136.45
  6. Step 6: Final answer
    x = 155,744.01

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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.