Home / 286,472.32-429,753.06-86,745.16

Finding the Fourth Proportional to 286,472.32, 429,753.06 and 86,745.16

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Solution

The fourth proportional to 286,472.32, 429,753.06 and 86,745.16 is: 130,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,472.32 : 429,753.06 = 86,745.16 : x
  2. Step 2: Convert to fraction form
    286,472.32/429,753.06 = 86,745.16/x
  3. Step 3: Cross multiply
    286,472.32x = 429,753.06 × 86,745.16
  4. Step 4: Simplify right side
    286,472.32x = 37,278,997,950.19
  5. Step 5: Solve for x
    x = 37,278,997,950.19/286,472.32
  6. Step 6: Final answer
    x = 130,131.24

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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.