Home / 137,454.12-206,075.40-66,340.14

Finding the Fourth Proportional to 137,454.12, 206,075.40 and 66,340.14

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Solution

The fourth proportional to 137,454.12, 206,075.40 and 66,340.14 is: 99,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,454.12 : 206,075.40 = 66,340.14 : x
  2. Step 2: Convert to fraction form
    137,454.12/206,075.40 = 66,340.14/x
  3. Step 3: Cross multiply
    137,454.12x = 206,075.40 × 66,340.14
  4. Step 4: Simplify right side
    137,454.12x = 13,671,070,886.56
  5. Step 5: Solve for x
    x = 13,671,070,886.56/137,454.12
  6. Step 6: Final answer
    x = 99,459.16

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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.