Home / 140,554.30-210,928.65-101,139.70

Finding the Fourth Proportional to 140,554.30, 210,928.65 and 101,139.70

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Solution

The fourth proportional to 140,554.30, 210,928.65 and 101,139.70 is: 151,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,554.30 : 210,928.65 = 101,139.70 : x
  2. Step 2: Convert to fraction form
    140,554.30/210,928.65 = 101,139.70/x
  3. Step 3: Cross multiply
    140,554.30x = 210,928.65 × 101,139.70
  4. Step 4: Simplify right side
    140,554.30x = 21,333,260,382.41
  5. Step 5: Solve for x
    x = 21,333,260,382.41/140,554.30
  6. Step 6: Final answer
    x = 151,779.49

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1.5x scale

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.