Home / 102,215.08-153,345.66-31,144.04

Finding the Fourth Proportional to 102,215.08, 153,345.66 and 31,144.04

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Solution

The fourth proportional to 102,215.08, 153,345.66 and 31,144.04 is: 46,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,215.08 : 153,345.66 = 31,144.04 : x
  2. Step 2: Convert to fraction form
    102,215.08/153,345.66 = 31,144.04/x
  3. Step 3: Cross multiply
    102,215.08x = 153,345.66 × 31,144.04
  4. Step 4: Simplify right side
    102,215.08x = 4,775,803,368.87
  5. Step 5: Solve for x
    x = 4,775,803,368.87/102,215.08
  6. Step 6: Final answer
    x = 46,723.08

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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.