Home / 140,278.40-210,233.28-66,427.52

Finding the Fourth Proportional to 140,278.40, 210,233.28 and 66,427.52

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Solution

The fourth proportional to 140,278.40, 210,233.28 and 66,427.52 is: 99,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,278.40 : 210,233.28 = 66,427.52 : x
  2. Step 2: Convert to fraction form
    140,278.40/210,233.28 = 66,427.52/x
  3. Step 3: Cross multiply
    140,278.40x = 210,233.28 × 66,427.52
  4. Step 4: Simplify right side
    140,278.40x = 13,965,275,411.87
  5. Step 5: Solve for x
    x = 13,965,275,411.87/140,278.40
  6. Step 6: Final answer
    x = 99,554.00

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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.