Home / 126,079.71-173,990.75-72,363.35

Finding the Fourth Proportional to 126,079.71, 173,990.75 and 72,363.35

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Solution

The fourth proportional to 126,079.71, 173,990.75 and 72,363.35 is: 99,861.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,079.71 : 173,990.75 = 72,363.35 : x
  2. Step 2: Convert to fraction form
    126,079.71/173,990.75 = 72,363.35/x
  3. Step 3: Cross multiply
    126,079.71x = 173,990.75 × 72,363.35
  4. Step 4: Simplify right side
    126,079.71x = 12,590,552,307.24
  5. Step 5: Solve for x
    x = 12,590,552,307.24/126,079.71
  6. Step 6: Final answer
    x = 99,861.84

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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.