Home / 126,018.64-173,904.24-72,304.80

Finding the Fourth Proportional to 126,018.64, 173,904.24 and 72,304.80

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Solution

The fourth proportional to 126,018.64, 173,904.24 and 72,304.80 is: 99,779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,018.64 : 173,904.24 = 72,304.80 : x
  2. Step 2: Convert to fraction form
    126,018.64/173,904.24 = 72,304.80/x
  3. Step 3: Cross multiply
    126,018.64x = 173,904.24 × 72,304.80
  4. Step 4: Simplify right side
    126,018.64x = 12,574,111,292.35
  5. Step 5: Solve for x
    x = 12,574,111,292.35/126,018.64
  6. Step 6: Final answer
    x = 99,779.77

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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.