Home / 124,429.40-171,643.24-86,211.32

Finding the Fourth Proportional to 124,429.40, 171,643.24 and 86,211.32

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Solution

The fourth proportional to 124,429.40, 171,643.24 and 86,211.32 is: 118,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,429.40 : 171,643.24 = 86,211.32 : x
  2. Step 2: Convert to fraction form
    124,429.40/171,643.24 = 86,211.32/x
  3. Step 3: Cross multiply
    124,429.40x = 171,643.24 × 86,211.32
  4. Step 4: Simplify right side
    124,429.40x = 14,797,590,289.48
  5. Step 5: Solve for x
    x = 14,797,590,289.48/124,429.40
  6. Step 6: Final answer
    x = 118,923.58

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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.