Home / 163,433.52-225,565-136,166.36

Finding the Fourth Proportional to 163,433.52, 225,565 and 136,166.36

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Solution

The fourth proportional to 163,433.52, 225,565 and 136,166.36 is: 187,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,433.52 : 225,565 = 136,166.36 : x
  2. Step 2: Convert to fraction form
    163,433.52/225,565 = 136,166.36/x
  3. Step 3: Cross multiply
    163,433.52x = 225,565 × 136,166.36
  4. Step 4: Simplify right side
    163,433.52x = 30,714,364,993.40
  5. Step 5: Solve for x
    x = 30,714,364,993.40/163,433.52
  6. Step 6: Final answer
    x = 187,931.86

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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.