Home / 210,097.50-315,149.00-69,856.13

Finding the Fourth Proportional to 210,097.50, 315,149.00 and 69,856.13

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Solution

The fourth proportional to 210,097.50, 315,149.00 and 69,856.13 is: 104,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,097.50 : 315,149.00 = 69,856.13 : x
  2. Step 2: Convert to fraction form
    210,097.50/315,149.00 = 69,856.13/x
  3. Step 3: Cross multiply
    210,097.50x = 315,149.00 × 69,856.13
  4. Step 4: Simplify right side
    210,097.50x = 22,015,087,588.34
  5. Step 5: Solve for x
    x = 22,015,087,588.34/210,097.50
  6. Step 6: Final answer
    x = 104,785.10

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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.