Home / 124,130.32-171,277.18-81,098.36

Finding the Fourth Proportional to 124,130.32, 171,277.18 and 81,098.36

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Solution

The fourth proportional to 124,130.32, 171,277.18 and 81,098.36 is: 111,900.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,130.32 : 171,277.18 = 81,098.36 : x
  2. Step 2: Convert to fraction form
    124,130.32/171,277.18 = 81,098.36/x
  3. Step 3: Cross multiply
    124,130.32x = 171,277.18 × 81,098.36
  4. Step 4: Simplify right side
    124,130.32x = 13,890,299,406.19
  5. Step 5: Solve for x
    x = 13,890,299,406.19/124,130.32
  6. Step 6: Final answer
    x = 111,900.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.