Home / 133,210.76-199,643.90-99,667.65

Finding the Fourth Proportional to 133,210.76, 199,643.90 and 99,667.65

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Solution

The fourth proportional to 133,210.76, 199,643.90 and 99,667.65 is: 149,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,210.76 : 199,643.90 = 99,667.65 : x
  2. Step 2: Convert to fraction form
    133,210.76/199,643.90 = 99,667.65/x
  3. Step 3: Cross multiply
    133,210.76x = 199,643.90 × 99,667.65
  4. Step 4: Simplify right side
    133,210.76x = 19,898,038,599.00
  5. Step 5: Solve for x
    x = 19,898,038,599.00/133,210.76
  6. Step 6: Final answer
    x = 149,372.60

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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.