Home / 126,038.36-173,931.12-72,322.20

Finding the Fourth Proportional to 126,038.36, 173,931.12 and 72,322.20

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Solution

The fourth proportional to 126,038.36, 173,931.12 and 72,322.20 is: 99,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,038.36 : 173,931.12 = 72,322.20 : x
  2. Step 2: Convert to fraction form
    126,038.36/173,931.12 = 72,322.20/x
  3. Step 3: Cross multiply
    126,038.36x = 173,931.12 × 72,322.20
  4. Step 4: Simplify right side
    126,038.36x = 12,579,081,246.86
  5. Step 5: Solve for x
    x = 12,579,081,246.86/126,038.36
  6. Step 6: Final answer
    x = 99,803.59

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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.