Home / 210,005.48-315,008.22-69,764.10

Finding the Fourth Proportional to 210,005.48, 315,008.22 and 69,764.10

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Solution

The fourth proportional to 210,005.48, 315,008.22 and 69,764.10 is: 104,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,005.48 : 315,008.22 = 69,764.10 : x
  2. Step 2: Convert to fraction form
    210,005.48/315,008.22 = 69,764.10/x
  3. Step 3: Cross multiply
    210,005.48x = 315,008.22 × 69,764.10
  4. Step 4: Simplify right side
    210,005.48x = 21,976,264,960.90
  5. Step 5: Solve for x
    x = 21,976,264,960.90/210,005.48
  6. Step 6: Final answer
    x = 104,646.15

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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.