Home / 135,505.70-186,995.44-75,075.13

Finding the Fourth Proportional to 135,505.70, 186,995.44 and 75,075.13

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Solution

The fourth proportional to 135,505.70, 186,995.44 and 75,075.13 is: 103,602.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,505.70 : 186,995.44 = 75,075.13 : x
  2. Step 2: Convert to fraction form
    135,505.70/186,995.44 = 75,075.13/x
  3. Step 3: Cross multiply
    135,505.70x = 186,995.44 × 75,075.13
  4. Step 4: Simplify right side
    135,505.70x = 14,038,706,312.23
  5. Step 5: Solve for x
    x = 14,038,706,312.23/135,505.70
  6. Step 6: Final answer
    x = 103,602.33

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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.