Home / 126,038.34-173,925.09-72,327.78

Finding the Fourth Proportional to 126,038.34, 173,925.09 and 72,327.78

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Solution

The fourth proportional to 126,038.34, 173,925.09 and 72,327.78 is: 99,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,038.34 : 173,925.09 = 72,327.78 : x
  2. Step 2: Convert to fraction form
    126,038.34/173,925.09 = 72,327.78/x
  3. Step 3: Cross multiply
    126,038.34x = 173,925.09 × 72,327.78
  4. Step 4: Simplify right side
    126,038.34x = 12,579,615,646.00
  5. Step 5: Solve for x
    x = 12,579,615,646.00/126,038.34
  6. Step 6: Final answer
    x = 99,807.85

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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.