Home / 109,602.40-164,075.55-103,114.30

Finding the Fourth Proportional to 109,602.40, 164,075.55 and 103,114.30

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Solution

The fourth proportional to 109,602.40, 164,075.55 and 103,114.30 is: 154,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,602.40 : 164,075.55 = 103,114.30 : x
  2. Step 2: Convert to fraction form
    109,602.40/164,075.55 = 103,114.30/x
  3. Step 3: Cross multiply
    109,602.40x = 164,075.55 × 103,114.30
  4. Step 4: Simplify right side
    109,602.40x = 16,918,535,485.37
  5. Step 5: Solve for x
    x = 16,918,535,485.37/109,602.40
  6. Step 6: Final answer
    x = 154,362.82

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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.